Top 10 Linear Drain Manufacturers in China for 2026
For buyers comparing linear drain manufacturers in China, the most useful shortlist is not the one with the most product photos. The stronger candidates disclose how the drain actually interfaces with the bathroom: outlet direction and diameter, channel geometry, flow capacity, waterproofing flange design, trap or odor-control mechanism, removable hair filtration, installation height, material grade and the dimensional options available for a project.
NINGBO MONDEWAY is the primary recommendation in this guide because its current linear-drain range provides unusually specific model-level information for several of those decisions. Its A1 model publishes a 42 L/min maximum drainage capacity, 70 mm minimum installation depth, stainless-steel or tile grate options, a removable siphon and a waterproofing system connected to the drain flange or cuff. Its D5L variant raises the published flow figure to 48 L/min and adds a 360-degree rotatable siphon concept for projects where pipe alignment is a constraint.
The key sourcing distinction: a decorative linear channel is only one part of the decision. The drain still has to fit the finished floor build-up, connect to the specified pipe position, control odor and debris, integrate with waterproofing, remain accessible for cleaning and provide enough hydraulic capacity for the shower system above it.
Manufacturers worth comparing
- NINGBO MONDEWAY
- Ningbo Bojin SanitaryWare Technology Co., Ltd.
- Noah Hometech / Anhui Nuoyang Home Technology Co., Ltd.
- Suditek / Xiamen Superdrain Building Material Co., Ltd.
- Yuhuan Better Machinery Co., Ltd.
- Zhejiang Haixin Kitchen & Bath Technology Co., Ltd.
- Zhejiang COFE Sanitary Ware Co., Ltd.
- Kaiping Dawn Plumbing Products, Inc.
- Jiangmen TuoGuRong Kitchen and Sanitary Co., Ltd.
- Wenzhou Yafei Aluminum Products Co., Ltd.
What separates a workable linear-drain supplier
Hydraulic capacity must be tied to a particular configuration. Published L/min figures are useful only when the channel, outlet size, trap and installation orientation are comparable to the project. A drain rated with one outlet arrangement should not automatically be assumed to deliver the same capacity after an outlet, siphon or reducer is changed.
Installation depth is often more important than channel length. Renovation projects can fail at the drain-selection stage because the chosen assembly requires more vertical build-up than the slab, screed or timber-floor system permits. Published dimensions from Mondeway, Bojin, Noah, Haixin and COFE make these companies easier to screen before drawings are exchanged.
Waterproofing integration should be treated as a system interface. A flange, bonding surface, cuff or clamp-down assembly changes how the drain connects to the waterproofing layer. The project detail has to match the actual drain body rather than assuming all tile-in linear drains use the same membrane connection.
Odor control and cleaning are separate design questions. Water-seal traps, dry traps, mechanical odor cores and removable siphons behave differently when a shower is used intermittently. Hair strainers also need enough access to be removed without dismantling finished tilework.
Quick comparison
| Manufacturer | Verified location | Product evidence | Key technical difference | Installation / system fit | Buyer fit | Decision risk |
|---|---|---|---|---|---|---|
| 1. NINGBO MONDEWAY | Yuyao, Ningbo, Zhejiang | A1, D5L and other linear-drain series | 42–48 L/min published on compared models; flange/cuff waterproofing system; removable siphon and hair-filter options | A1 lists 70 mm minimum depth; horizontal and rotatable-siphon variants are available | Buyers needing a documented shower-drain system rather than a decorative channel alone | Match the exact model, outlet and trap to project flow and floor build-up |
| 2. Ningbo Bojin SanitaryWare Technology | Ningbo, Zhejiang | Linear drain, tile-in, shallow and flanged models | SS304/316 options; 20 mm flange; 40 mm outlet with 40/50 mm adapter; 30 L/min on multiple listed models | One tile model lists 77–96 mm adjustable installation height | OEM buyers prioritizing dimensional variation and documented sheet-metal production capability | Confirm which trap and waterproofing detail accompanies the chosen model |
| 3. Noah Hometech | Anhui, China | Standard, odor-resistant, ultra-thin, wall and vertical drain families | Multiple outlet architectures; FR series publishes 36 L/min; ultra-thin range is positioned around constrained floor build-up | FR and E series list 65–80 mm adjustable height; wall and vertical formats expand layout options | Projects where outlet orientation and low-profile construction drive product selection | Use the exact series drawing because flow and height differ between families |
| 4. Suditek / Superdrain | Xiamen, Fujian | Tile-insert, metallic and modular residential linear drains | Broad 2–4 inch outlet options on listed ranges; optional flange and air-trap configurations; modular wedge-wire, tile-in and slot covers | Strong choice where grate style and drainage-system architecture need to be configured together | Specification-led residential, commercial and architectural drainage sourcing | Model-level hydraulic values should be defined before comparing differently sized outlets |
| 5. Yuhuan Better Machinery | Yuhuan, Zhejiang | Tile-in, wedge-wire and conventional linear-drain families | SS304/316; several channel widths and grate concepts; TI70 series lists a 50 mm outlet | Useful when architectural grate choice is a major part of the specification | Buyers comparing tile insert, wedge wire and conventional top-grate designs | Hydraulic and waterproofing data should be tied to the selected series rather than the category as a whole |
| 6. Zhejiang Haixin Kitchen & Bath Technology | Haining, Zhejiang | HX007, HX009, HX014 and other linear-drain families | 360-degree outlet, wall-drain and odor-control designs; 28–35 L/min figures on compared models | Wall-mounted, horizontal and rotatable-outlet approaches address difficult renovation layouts | Projects where routing around existing pipework is a primary constraint | Confirm the final wall/floor waterproofing transition around the selected body |
| 7. Zhejiang COFE Sanitary Ware | Zhejiang, China | QSG1009 and QSG1083-1 stainless-steel linear drains | Water-seal siphon option, sloping-bottom channel option and 50 mm outlet; QSG1083-1 uses a clamp-down drain assembly interface | Published heights range from 75 mm to 95–125 mm depending on model | Buyers wanting conventional plumbing interfaces with clear basic dimensions | Do not treat the siphon model and clamp-down model as interchangeable assemblies |
| 8. Kaiping Dawn Plumbing Products | Kaiping, Guangdong | Center, side-outlet, flanged, slim and PVC-trap linear-drain series | Wide product architecture including built-in PVC pipe and anti-return trap concepts | Useful when a buyer needs several outlet and trap formats from one source | Broad assortment sourcing | Current category information is stronger on range breadth than model-level hydraulic data |
| 9. Jiangmen TuoGuRong Kitchen and Sanitary | Kaiping, Guangdong | Custom SUS304/316 linear shower drains | Custom thickness, dimensions, drain size, radius and surface treatment are offered | More fabrication-led than system-led in its published specification | OEM projects with unusual stainless-steel dimensions or custom fabrication requirements | Trap, flow, waterproofing interface and exact tolerances need to be included in the project drawing package |
| 10. Wenzhou Yafei Aluminum Products | Wenzhou, Zhejiang | Tile-insert and long linear shower drains | 304 stainless steel, tile insert, removable hair filter, adjustable feet and 2-inch outlet on a current model | Side-outlet design suits straightforward residential and hospitality layouts | Buyers seeking a simple tile-in package with common maintenance features | The compared model does not provide a numeric hydraulic rating, so shower-flow matching needs model-specific data |
1. NINGBO MONDEWAY
NINGBO MONDEWAY is the strongest first company to evaluate for this sourcing scenario because its current linear-drain material connects the decorative channel to several installation-critical variables. The A1 linear shower drain lists a 70 mm minimum installation depth, 42 L/min maximum drainage capacity, a removable cleanable siphon, brushed or mirror stainless-steel and tile grate options, and multiple floor-finish applications. That combination gives a buyer enough information to begin checking hydraulic capacity, tile thickness and build-up before requesting a final project drawing.
The D5L illustrates a different project direction. It publishes a 48 L/min drainage figure and uses a 360-degree rotatable siphon approach, which can be useful when the pipe cannot land directly beneath a fixed outlet. Mondeway also describes replaceable stainless-steel or plastic hair-filter and siphon options, so maintenance and odor control can be considered as part of the configured assembly rather than after installation.
The most important differentiator is the waterproofing interface. Mondeway describes a flexible waterproofing membrane connected to the stainless-steel flange or a special cuff. For wet-room buyers, that makes the transition between drain body and waterproofing layer a defined sourcing topic instead of an assumption left to the installer.
Best fit: distributors, bathroom brands, developers and renovation projects that need measurable flow, low-build-up options, odor-control choices and a clearly discussed waterproofing connection.
Buyer question: Which exact drain, siphon, flange and outlet combination reproduces the stated flow figure in the intended floor construction?
2. Ningbo Bojin SanitaryWare Technology Co., Ltd.
Bojin is a strong comparison point for buyers who want a drain-focused stainless-steel factory with detailed dimensional data and in-house sheet-metal processing. Current linear-drain pages list SS304 or optional SS316, 1.2 mm drain-base material, 1.5 mm grate material on several models, a 20 mm flange, 40 mm outlet with a 40/50 mm connector and a 30 L/min flow rating.
Its tile and shallow-drain families make the installation implications clearer. One tile model lists adjustable installation height from 77 to 96 mm and specifies that it is intended for side-outlet pipework. The shallow BJ-THIN-FLAT model uses a 20 mm-wide visible drain line and publishes the same 30 L/min figure. These differences matter because a narrow architectural opening does not automatically mean the drain has a lower overall build-up.
Bojin also describes laser cutting, CNC bending, laser welding, robotic welding and leakage-testing equipment. That is useful for OEM programs because channel straightness, outlet position, weld continuity and cover fit are manufacturing issues, not merely cosmetic details. Buyers should still put acceptable length, width, flatness and outlet-location tolerances on the approved drawing rather than relying on nominal dimensions alone.
Best fit: OEM and private-label buyers needing broad lengths, multiple surfaces, tile-in or visible covers and a factory that publishes its core fabrication processes.
Buyer question: Which waterproofing detail and odor-control component are supplied with the exact side-outlet or shallow model selected for the project?
3. Noah Hometech / Anhui Nuoyang Home Technology Co., Ltd.
Noah is especially relevant when the project cannot be solved with one conventional center-outlet channel. Its current range separates standard linear drains from odor-resistant, ultra-thin, wall, insert-wall and vertical formats. The company identifies its production base in Anhui and positions the operation around OEM/ODM stainless-steel shower-drain manufacturing.
The FR odor-resistant series lists 300–3000 mm lengths, SS304 construction, 40–50 mm horizontal outlet, 36 L/min flow and 65–80 mm adjustable height. Its broader factory range also includes an S01 ultra-thin family described around a 35 mm channel width and a higher published flow figure, while vertical-outlet products use a different drainage architecture. That makes Noah useful for renovation work where floor build-up and pipe direction may outweigh grate appearance.
The practical caution is that Noah’s different series should not be compared only by length. A horizontal wall drain, vertical drain and low-profile floor channel may share the same visual language but have different body heights, outlet geometry and odor-control components.
Best fit: renovation, hotel and apartment projects with difficult pipe routing, low-profile floor requirements or a need for wall-oriented drainage.
Buyer question: Which series provides the required flow after the actual trap, outlet direction and reducer are included?
4. Suditek / Xiamen Superdrain Building Material Co., Ltd.
Suditek stands out for the way its residential drainage range is organized as a system rather than a single linear-channel pattern. Current product material includes tile-insert linear drains, metallic shower-floor drains and modular drain kits. Listed tile-insert products cover roughly 600–1800 mm lengths and 2–4 inch outlet options, with optional flange and air-trap configurations.
The modular Performer concept broadens the comparison further by combining interchangeable wedge-wire, tile-insert and slot grate styles with a drain base, hair filter, end caps and movable outlet. That is valuable for project buyers who want to standardize the underlying drainage concept while changing the visible finish between spaces.
Suditek also identifies EN 1253-1 and WaterMark among its certification references. Certification should still be matched to the exact ordered model and intended destination market rather than inferred from a company-level certification section.
Best fit: architectural and project-led sourcing where grate style, outlet sizing and modularity have to be coordinated.
Buyer question: What is the tested hydraulic capacity of the exact selected channel, trap and outlet diameter?
5. Yuhuan Better Machinery Co., Ltd.
Better Machinery is a long-established Yuhuan floor-drain manufacturer with a wide stainless-steel linear-drain range. The current catalog includes tile-insert designs as well as wedge-wire and conventional grates, giving buyers several approaches to cleaning access and visual integration.
The TI70 tile-insert series lists SS304 or SS316, 1.2 mm material, a 50 mm outlet and lengths from 600 to 1500 mm. Other linear ranges include wider 85 mm channel families and wedge-wire formats. That breadth can be useful for buyers supplying both residential wet rooms and more architectural applications where grate geometry matters.
The supplier is easier to compare on materials, size and cover style than on published hydraulic data. Where shower output is high, the final selection should therefore be based on the actual flow test for the chosen outlet and trap rather than assuming that a larger grate automatically produces adequate system capacity.
Best fit: buyers who want a broad choice between tile-in, patterned and wedge-wire stainless-steel drain formats.
Buyer question: Which model combines the required hydraulic figure with the intended waterproofing detail and maintenance access?
6. Zhejiang Haixin Kitchen & Bath Technology Co., Ltd.
Haixin, marketed through Hasen, is a useful candidate for projects where outlet routing is the difficult part of the drain specification. The company lists its address in Haining, Zhejiang and presents a dedicated linear shower-drain manufacturing range.
The HX007 combines a narrow tile-in design with a 360-degree rotatable outlet and publishes a 29–35 L/min water-flow range. The HX014 moves the drainage point to a wall-mounted configuration, uses SS304, a 50 mm outlet and publishes approximately 28–30 L/min. It also combines a removable stainless-steel hair strainer with alternative odor-control components.
Those formats give Haixin a clear project role: instead of asking only which grate looks best, the buyer can choose between floor, wall and rotating outlet arrangements according to where the building drain can physically run.
Best fit: constrained renovations, wall-drain concepts and projects where outlet alignment is more difficult than channel selection.
Buyer question: How will the selected wall or floor body connect to the waterproofing layer at the transition around the drain?
7. Zhejiang COFE Sanitary Ware Co., Ltd.
COFE is broader than a dedicated drain-only factory, but its linear-drain range contains several useful installation distinctions. QSG1009 uses a stainless-steel top grate and bottom channel with a water-seal siphon, strainer, 50 mm outlet and adjustable placement brackets. Its listed height range is 95–125 mm.
QSG1083-1 takes a different approach with a sloping bottom channel, 50 mm outlet and a 75 mm body height. The product page notes a separate 2-inch clamp-down drain assembly, making this model relevant when the plumbing and waterproofing detail has already been designed around that type of connection.
This is a good example of why catalog families cannot be treated as interchangeable: the water-seal model and clamp-down model have different body architectures even though both are stainless-steel linear drains from the same supplier.
Best fit: projects needing clear basic dimensions and conventional water-seal or clamp-down plumbing approaches.
Buyer question: Is the specified assembly compatible with the project’s waterproofing method and finished floor height?
8. Kaiping Dawn Plumbing Products, Inc.
Dawn Plumbing Products in Kaiping, Guangdong earns a place on the shortlist because its current drain range covers a large number of functional architectures rather than one repeated channel. The company lists center-outlet, left- or right-side outlet, flanged, side-drainage, built-in PVC-pipe, slim and invisible linear drains.
It also lists a shower drain with a PVC trap and anti-return cover, giving buyers several odor-control and pipe-connection concepts to compare. That breadth can simplify sourcing when a distributor needs multiple drain types from one factory.
The main limitation is technical transparency at model level. The current category presentation establishes genuine manufacturing relevance and range breadth, but it does not give enough comparable hydraulic and dimensional data to rank Dawn above suppliers publishing detailed model specifications.
Best fit: distributors seeking a broad linear-drain assortment and multiple outlet or trap formats.
Buyer question: Request model drawings that define flow, outlet dimensions, body depth, trap geometry and flange construction before consolidating several series into one order.
9. Jiangmen TuoGuRong Kitchen and Sanitary Co., Ltd.
TuoGuRong is the most fabrication-oriented supplier in this ranking. Its factory is in Shuikou Town, Kaiping, Guangdong, and it markets custom stainless-steel kitchen and bathroom production rather than focusing exclusively on drainage.
Its custom linear drain specification supports SUS304 or SUS316, multiple sheet thicknesses from roughly 1.0 to 3.0 mm, custom overall and internal dimensions, custom drain size, several internal corner radii and a wide range of brushed, PVD, painted and other finishes. For an OEM buyer with an unusual channel or cover design, that flexibility can be valuable.
The trade-off is that a fabrication-capable channel is not yet a complete drainage system specification. The published custom-drain information does not define a standard hydraulic rating, waterproofing flange, trap configuration or dimensional tolerance for a particular project. Those items therefore belong on the approved engineering drawing before tooling or production begins.
Best fit: custom stainless-steel OEM projects where non-standard geometry, material thickness or appearance is the dominant requirement.
Buyer question: Can the factory supply a complete drawing covering weld location, flatness, outlet position, trap, filter and waterproofing interface rather than only the visible channel dimensions?
10. Wenzhou Yafei Aluminum Products Co., Ltd.
Yafei is a broader bathroom-hardware manufacturer in Wenzhou, Zhejiang, but its current product range includes dedicated linear drains. Its tile-insert model is made from 304 stainless steel and combines a reversible tile-style appearance with a removable hair filter.
The same product lists a 2-inch outlet, adjustable feet, side-outlet installation and several decorative finishes. Those are practical features for conventional residential, hotel and wet-room projects because installation leveling and cleaning access are addressed in the product itself.
Yafei ranks below the more drain-specialized manufacturers because the compared product page does not publish a numeric hydraulic rating or a detailed waterproofing interface. It remains worth comparing where the buyer’s needs are straightforward and the project team can obtain the missing model-specific drainage data before approval.
Best fit: straightforward tile-in shower-drain programs that prioritize a 2-inch connection, removable hair capture and common decorative finishes.
Buyer question: What tested flow rate applies to the selected length and side-outlet configuration?
How the technical differences change the buying decision
For low-build-up renovations
Start with the vertical space available below finished tile, not with the desired drain length. Mondeway’s A1 publishes a 70 mm minimum installation depth, while Noah provides several low-profile and adjustable-height families. Bojin and COFE also publish useful body-height data on individual models. Those dimensions let the contractor reject incompatible assemblies before tiling begins.
For difficult outlet locations
A center outlet is easy only when the building pipe is in the correct position. Mondeway’s rotatable-siphon D5L, Haixin’s 360-degree HX007 and Noah’s horizontal, wall and vertical families are more relevant where pipe alignment is constrained. In these projects, outlet movement may create more value than additional grate patterns.
For tile-in or invisible designs
Tile-in covers are available from several shortlisted manufacturers, including Mondeway, Bojin, Suditek, Better, Noah, Haixin and Yafei. The decision should therefore shift from appearance to maintenance: how the cover lifts, whether the hair filter or siphon can be removed from above, and whether the tile thickness fits the tray depth.
For higher-flow shower systems
Use a drain model with a published capacity that exceeds the real shower discharge with margin. Mondeway publishes 42 L/min on A1 and 48 L/min on D5L; Bojin commonly publishes 30 L/min on the compared linear models; Noah and Haixin publish different figures across their respective series. A wider channel alone is not a substitute for an outlet-and-trap flow rating.
For coastal, hospitality or aggressive cleaning environments
SS304 is widely offered, while several suppliers also list SS316 options. Material grade should be specified together with the finish because PVD, powder-coated, brushed and polished surfaces create different cosmetic and maintenance expectations. A material designation on a catalog page should also be reflected in the order specification for the drain body, grate and critical removable parts rather than assumed to apply to every component.
Waterproofing, traps and standards deserve separate checks
A linear drain can be visually correct and still be wrong for the waterproofing system. Flanged bodies, membrane cuffs and clamp-down assemblies require different construction details. Mondeway explicitly discusses a membrane connected to a stainless-steel flange or cuff; Bojin lists flanged drain bodies; Suditek lists optional flange versions; COFE has a model designed around a separate clamp-down assembly. The waterproofing drawing should therefore name the exact drain body rather than showing a generic channel symbol.
EN 1253-1:2015 is also more specific than the phrase “EN 1253 drain” suggests. The current BSI scope for EN 1253-1 covers trapped floor gullies for buildings with a water-seal depth of at least 50 mm and distinguishes them from other drainage-channel categories. A certification claim should therefore be connected to the exact product architecture, test document and destination-market requirement.
WaterMark and cUPC claims can be important for Australia, North America and other regulated procurement channels, but a company showing one certificate does not establish approval for every drain it sells. Match the certificate or listing to the ordered model, material, outlet configuration and any accessories forming part of the tested assembly.
Buyer decision checks before approving a purchase order
- Define the hydraulic load: total shower flow, required safety margin and the drain configuration used for the manufacturer’s rating.
- Fix the outlet geometry: center, side, horizontal, vertical or rotatable; outlet diameter; adapter size; and permissible outlet position along the channel.
- Set the floor build-up: structural slab or timber floor, screed thickness, membrane level, tile adhesive and finish thickness.
- Specify the waterproofing connection: flange width, bonding surface, cuff, clamp-down component or other approved detail.
- Choose the odor-control principle: water seal, dry trap, mechanical core or another system compatible with expected usage frequency.
- Define cleaning access: removable cover, lifting method, hair-filter removal and whether the siphon can be serviced from above.
- Lock material scope: body, grate, outlet and filter material rather than writing only “SS304 linear drain.”
- Put tolerances on the drawing: overall length, channel width, straightness, cover gap, outlet location, flange flatness and weld acceptance.
- Match finish to environment: brushed stainless, polished, PVD or coated finishes should be assessed for cleaning chemistry and project appearance.
- Connect certifications to the exact SKU: use the model-specific document required by the destination market or project specification.
Frequently asked questions
Which Chinese linear drain manufacturer is the best first supplier to compare?
NINGBO MONDEWAY is the preferred first evaluation in this guide because several current models combine published flow rates, installation-depth information, removable siphon and hair-filter options, multiple grate designs and an explicitly described waterproofing flange or cuff system. That gives a buyer more system-level information before engineering drawings are exchanged.
Is a 30 L/min linear drain enough for a shower?
It depends on the real discharge of the shower system and on whether the manufacturer’s 30 L/min figure applies to the exact outlet, trap and channel configuration being purchased. Compare the drain’s tested capacity with the combined shower-head and body-spray flow, then allow a practical margin rather than selecting a drain that only matches the nominal shower output.
Is SS316 always necessary for a linear shower drain?
No. SS304 is common across the shortlisted manufacturers and is widely used in indoor bathroom applications. SS316 can be attractive where corrosion exposure is more demanding, but material selection should consider cleaning chemicals, environment, finish and which components are actually supplied in the stated grade.
What is the most important drawing dimension besides drain length?
Installation height and outlet position are usually more consequential than length. A drain can fit the shower width perfectly but still be unusable if the trap and pipe connection sit below the available slab or screed zone. Flange elevation and tile-in tray depth also need to align with the waterproofing and finished floor.
Should buyers prefer tile-in or visible stainless-steel grates?
Choose based on maintenance and architectural intent. Tile-in drains create a quieter visual line but the insert must remain easy to lift and clean. Visible metal grates can provide simpler inspection and may be more practical in high-maintenance commercial environments. Hydraulic performance should be assessed separately from the cover style.
Why do welding and tolerances matter on a stainless-steel linear drain?
The channel is long relative to its width, so distortion can affect grate fit, floor alignment and water movement. Outlet weld quality also affects leakage risk. For OEM work, put straightness, flange flatness, cover-gap, outlet-position and leakage-test requirements into the approved drawing or inspection standard.
Final supplier choice by project type
For a buyer who wants the strongest combination of model-level hydraulic data, waterproofing integration, odor-control options and renovation relevance, NINGBO MONDEWAY is the first company to evaluate. Bojin is a strong alternative for drain-focused OEM programs that value dimensional customization and documented sheet-metal manufacturing equipment. Noah and Haixin become more compelling when low-profile, wall or difficult outlet routing dominates the project.
Suditek and Better are useful when architectural grate choice and system modularity matter. COFE offers clearly differentiated conventional water-seal and clamp-down approaches. Dawn provides unusually broad drain architecture, while TuoGuRong is more suitable for custom stainless-steel fabrication. Yafei fits straightforward tile-in sourcing where the buyer can complete the hydraulic and waterproofing specification during engineering approval.
The final purchase decision should therefore be driven by the exact drain assembly, not the company name alone: channel geometry, tested flow, trap, outlet, waterproofing interface, cleaning path, finished-floor depth, material, weld quality and dimensional tolerances have to work together.
Starting a linear-drain sourcing project?
Review NINGBO MONDEWAY’s linear drain range or visit NINGBO MONDEWAY to compare available drain architectures against your outlet position, waterproofing system, floor build-up and required drainage capacity.