Rimless Washdown One-Piece Toilet, 8/10 Inch Rough-In
Rimless bowl design and a washdown flush define the HSJ-2557, a white ceramic one-piece toilet. Short rough-in settings are the main point: S-trap at 200 mm (8 in) or 250 mm (10 in), with a 180 mm P-trap outlet also listed. Printed size is 670 × 400 × 730 mm (26.4 × 15.7 × 28.7 in), length × width × height. Distributors and builders can specify a rimless model for drains set 200 or 250 mm from the wall.
Compare rimless and other models across the one-piece toilet range.
More in Rimless Toilets
Mix any models in one 20ft container · no per-model minimum
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TC-7102Rimless Swirl Flush Two-Piece Toilet TC-7102, 8/10 Inch Rough-In, 2 Finishes25.0" × 15.0" × 32.7"Floor-mounted
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TC-7002Rimless Swirl Flush Two-Piece Toilet TC-7002, 8/10 Inch Rough-In, 2 Finishes25.0" × 15.0" × 32.7"Floor-mounted
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TC-58184HRimless One-Piece Toilet, 10 Inch Rough-In, 710 × 400 × 765 mm28.0" × 15.7" × 30.1"Floor-mounted
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TC-58175H650 mm Rimless One-Piece Toilet, 10 Inch Rough-In25.6" × 14.4" × 31.1"Floor-mounted
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TC-58182H700 mm Rimless One-Piece Toilet, 10 Inch Rough-In27.6" × 15.0" × 28.7"Floor-mounted
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TC-58107HRimless One-Piece Toilet, 10 Inch Rough-In, 710 × 390 × 730 mm28.0" × 15.4" × 28.7"Floor-mounted
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LJ-E10490 mm Rimless Wall-Hung Toilet, 180 mm P-Trap Outlet19.3" × 14.4" × 14.2"Wall-hung
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LJ-E09SRimless Wall-Hung Toilet, 170 mm P-Trap Outlet19.1" × 14.4" × 14.4"Wall-hung
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LJ-E09Rimless Wall-Hung Toilet, 180 mm P-Trap Outlet, 9 Finishes19.1" × 14.4" × 14.4"Wall-hung
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LJ-E07Rimless Wall-Hung Toilet, 150 mm P-Trap Outlet21.1" × 14.2" × 13.4"Wall-hung
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LJ-E08505 mm Rimless Wall-Hung Toilet, 180 mm P-Trap Outlet, 2 Finishes19.9" × 14.2" × 14.0"Wall-hung
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LJ-E06Rimless Wall-Hung Toilet, 185 mm P-Trap Outlet20.9" × 14.2" × 14.6"Wall-hung
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LJ-E03Rimless Wall-Hung Toilet, 180 mm P-Trap Outlet, 12 Finishes19.9" × 13.6" × 14.4"Wall-hung
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LJ-A18500 mm Rimless Wall-Hung Toilet, 180 mm P-Trap Outlet19.7" × 14.8" × 14.4"Wall-hung
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LJ-A15Rimless Wall-Hung Toilet, 175 mm P-Trap Outlet, 3 Finishes20.9" × 14.4" × 14.4"Wall-hung
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LJ-A13Rimless Wall-Hung Toilet, 170 mm P-Trap Outlet, 3 Finishes20.3" × 14.2" × 14.6"Wall-hung
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LJ-A12Rimless Wall-Hung Toilet, 180 mm P-Trap Outlet, 3 Finishes20.9" × 14.6" × 14.4"Wall-hung
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LJ-A09H550 mm Rimless Wall-Hung Toilet, 180 mm P-Trap Outlet, 2 Finishes21.7" × 14.0" × 14.4"Wall-hung
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HSJ-3048Rimless Washdown Two-Piece Toilet HSJ-3048, 10 Inch Rough-In25.6" × 13.4" × 30.3"Floor-mounted, S-trap or P-trap
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HSJ-3047Rimless Washdown Two-Piece Toilet HSJ-3047, 10 Inch Rough-In25.6" × 13.4" × 30.3"Floor-mounted, S-trap or P-trap
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HSJ-2550Rimless Washdown One-Piece Toilet, 6/10 Inch Rough-In26.6" × 14.6" × 29.5"Floor-mounted, S-trap or P-trap
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HSJ-2548Rimless Siphonic One-Piece Toilet, 10 Inch Rough-In28.1" × 15.0" × 29.9"Floor-mounted, S-trap or P-trap
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HSJ-2441Rimless Siphonic One-Piece Toilet, 10/12/16 Inch Rough-In27.2" × 14.6" × 30.3"Floor-mounted, S-trap or P-trap
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HSJ-2401Rimless Washdown One-Piece Toilet, 10/12/16 Inch Rough-In25.6" × 14.2" × 29.3"Floor-mounted, S-trap or P-trap
Fit data
Rough-in, flush and size of HSJ-2557
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Side by Side
26 Inch Rimless Washdown One Piece Toilet, 8/10 Inch Rough-In or HSJ-2425: Printed Figures
HSJ-2425 is the nearest model in the range to HSJ-2557.
- HSJ-2557
- 670 × 400 × 730 mm
- HSJ-2425
- 680 × 400 × 760 mm
HSJ-2557 prints 670 × 400 × 730 mm; HSJ-2425 prints 680 × 400 × 760 mm.
Flush lists differ: HSJ-2557 prints washdown, while HSJ-2425 prints siphonic or washdown.
Quote HSJ-2557 with these details
- Model: HSJ-2557
- Outlet: S-trap rough-in (200 or 250 mm) or 180 mm P-trap
- Quantity split by outlet
- Destination market
- Carton marking and delivery port
Build Type
White Is the Listed Color for HSJ-2557
White
One-Piece in White
Tank and bowl are joined in one-piece construction. White is the single listed color.
Color is fixed at white, so the RFQ only varies outlet and quantity.
Mount: floor-mounted.
Flush Type
Rimless Washdown Flush on the 670 × 400 mm Body
Washdown is the one flush type printed for HSJ-2557, with a rimless bowl.
Flush choice is settled by the model: every HSJ-2557 on the order is washdown.
Outlet is the only version choice on the order; washdown applies to all three outlet versions.
Measured Rough-In
Drain Positions HSJ-2557 Covers
HSJ-2557 is listed with 2 S-trap rough-ins and a 180 mm P-trap outlet.
- S-trap rough-in
- 200 mm (8 in) / 250 mm (10 in)
- P-trap outlet height
- 180 mm
- Outlet versions
- 3
The P-trap figure is the listed rear-outlet height, not a rough-in distance.
Destination Paperwork
Which Documents Come With an HSJ-2557 Quote
Selling region decides which documents travel with the order.
Certification documents for HSJ-2557 are matched to the destination market at quotation.
Length · Width · Height
730 mm Overall Height as Printed
HSJ-2557 is printed at 670 × 400 × 730 mm (26.4 × 15.7 × 28.7 in).
- Length, 670 mm
- 26.4 in
- Width, 400 mm
- 15.7 in
- Height, 730 mm
- 28.7 in
- Outlet versions listed
- 3
Millimeter values are as printed; inch values follow in brackets.
How we work
From enquiry to shipment
A factory-direct process built for importers, distributors and project buyers. No trading layer in between.
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01
Send the enquiry
Tell us the model, quantity, destination market and any branding or packaging requirement. A spec sheet or drawing helps but is not required to start.
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02
Our sales team contacts you
A named account manager follows up by email or WhatsApp, confirms the specification and clarifies anything missing before pricing.
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03
Quotation
You receive a written quotation with unit price, MOQ, packing details, lead time and the trade term you asked for. Entry, mid and premium build levels can be quoted side by side.
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04
Sample approval
We send a sample for finish, function and packaging sign-off. Branded samples are produced once artwork is confirmed.
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05
Production and shipment
Mass production starts after sample approval and deposit. QC and inspection run before loading, then the order ships to the agreed port.
OEM and ODM to your specification
We develop to a brief. Send a reference model, a drawing or simply the price band and market you are targeting, and we will propose what fits. Entry, mid and premium builds are all available from the same factory.
- Your logo on product, carton and documentation
- Private-label packaging and manuals
- Custom finish matched to your standard
- Custom dimensions and tooling where volume supports it
- Product development from your reference or price target
- Destination-market documentation prepared on request
FAQs
How does HSJ-2557 compare with HSJ-2425?+
Is HSJ-2557 a 26 inch rimless washdown one-piece toilet, 8/10 inch rough-in?+
What width is HSJ-2557?+
HSJ-2557 is a 26 inch rimless washdown one piece toilet with 8/10 inch rough-in versions. On S-trap, HSJ-2557 prints 200 and 250 mm; HSJ-2425 prints 250 and 300 mm. On size, HSJ-2557 prints 670 × 400 × 730 mm; HSJ-2425 prints 680 × 400 × 760 mm. On bowl and flush, HSJ-2557 prints a rimless bowl with washdown; HSJ-2425 prints siphonic or washdown with no rimless listing. Both list a 180 mm P-trap. Confirm against the model spec sheet before ordering.
Floor drains for HSJ-2557 are matched by S-trap entries at 200 mm (8 in) and 250 mm (10 in). Each printed entry is ordered as its own line. Wall wastes take the P-trap entry at 180 mm. Group rooms by entry and write each group as a line with its toilet count. Readings outside these values need another model. Washdown flush applies to all three entries, and the survey sheet should stay with the purchase file for the site team.
The bowl on HSJ-2557 is printed as rimless, and washdown is the single flush. The one piece toilet design joins tank and toilet bowl in white ceramic, the only listed color. Every line on the order therefore shares bowl, flush and finish. Request written confirmation of the outlet split and counts from the factory before production. Length is printed at 670 mm. Buyers specifying rimless bowls across a whole building can list this model with no flush or color fields.