Tornado Flush One-Piece Toilet with 3-Inch Flush Valve and Soft-Close Seat
SANIKB 1981 is a one-piece vitreous china toilet measuring 710 × 385 × 740 mm, built for a 305 mm (12 in) S-trap rough-in. It ships with a soft-close seat, a 3 in flush valve and a fully glazed trapway, and runs 1.28 gpf (4.8 L) as standard with 1.06 / 1.28 gpf dual flush available on request. Supplied factory-direct to distributors, private-label brands, hotel and multi-unit residential projects; MOQ 50 pcs, mixed 1×20 ft container accepted, quotes returned within 12 business hours.
Compare footprints and control layouts across the SANIKB one-piece toilet range.
More in One Piece Toilet
Mix any models in one 20ft container · no per-model minimum
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1991Siphonic One-Piece Toilet with Fully Glazed Trapway, 3-Inch Flush Valve27.8" × 15.4" × 27.6"Floor-mounted, S-trap
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1978Siphon Jet One-Piece Toilet, 1.28 GPF, 12-Inch Rough-In, Fully Glazed Trapway27.2" × 14.6" × 27.6"Floor-mounted, S-trap
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1916Tornado Flush One-Piece Toilet, 3-Inch Flush Valve, Fully Glazed Trapway27.6" × 15.2" × 29.5"Floor-mounted, S-trap
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1938One-Piece Tornado Flush Toilet with 2-Inch Flush Valve, 1.28 GPF27.6" × 15.2" × 30.7"Floor-mounted, S-trap
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1939Siphon Jet One-Piece Toilet with 3-Inch Flush Valve, Fully Glazed Trapway27.6" × 15.6" × 28.3"Floor-mounted, S-trap
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1009Siphon Jet One-Piece Toilet with 3-Inch Flush Valve, 14.4-Inch Body Width27.0" × 14.4" × 28.5"Floor-mounted, S-trap
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6656Compact Skirted Dual-Flush Elongated One-Piece Toilet, 25-Inch Space-Saving25.2" × 14.4" × 29.7"Floor-mounted
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6654Single-Flush Skirted Elongated One-Piece Toilet, 27-Inch Spacious Comfort Bowl27.0" × 15.7" × 30.3"Floor-mounted
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6653Slim-Depth Single-Flush Skirted Elongated One-Piece Toilet, 15-Inch Narrow25.6" × 15.0" × 29.9"Floor-mounted
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6651Square-Tank Dual-Flush Skirted Elongated One-Piece Toilet, Compact Footprint25.6" × 14.4" × 29.5"Floor-mounted
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6649Ultra-Compact Dual-Flush Skirted Elongated One-Piece Toilet, 24.8-Inch Small-Space24.8" × 14.2" × 29.1"Floor-mounted
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6639Wide-Footprint Dual-Flush Skirted Elongated One-Piece Toilet, 27.2-Inch Wide Seat27.2" × 15.9" × 29.5"Floor-mounted
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6638Comfort-Height Single-Flush Skirted Elongated One-Piece Toilet, 30-Inch Tall27.4" × 15.2" × 30.4"Floor-mounted
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6636Deep-Bowl Dual-Flush Seamless Skirted Elongated One-Piece Toilet, 28-Inch Projection28.0" × 14.8" × 30.1"Floor-mounted
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6629Modern Seamless Dual-Flush Skirted Elongated One-Piece Toilet, 28-Inch Balanced28.0" × 15.4" × 29.5"Floor-mounted
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6618Tall Comfort-Height Skirted Elongated One-Piece Toilet, 30.7 in Dual-Flush26.8" × 15.0" × 30.7"Floor-mounted
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2218Compact Low-Profile Rounded Skirted One-Piece Toilet, 27.6 in Dual-Flush27.4" × 15.0" × 27.6"Floor-mounted
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2217Wide-Body Low-Profile Skirted Elongated One-Piece Toilet, Concealed Trapway28.9" × 15.7" × 27.0"Floor-mounted
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2213Squared-Tank Skirted Elongated One-Piece Toilet, Side-Button Dual-Flush28.0" × 14.8" × 30.1"Floor-mounted
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2190Skirted Elongated One-Piece Toilet, 400 mm Seat Concealed Trapway27.6" × 15.7" × 30.3"Floor-mounted
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2169Wide 420 mm Seat Skirted Compact One-Piece Toilet, Dual-Flush28.7" × 16.5" × 29.5"Floor-mounted
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2026Narrow-Depth Modern Skirted Elongated One-Piece Toilet, 14.8 in Deep27.0" × 14.8" × 30.3"Floor-mounted
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2025Square Modern Skirted Elongated One-Piece Toilet, Tall Slim-Depth27.9" × 14.7" × 30.6"Floor-mounted
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2023Wide 410 mm Seat Rounded Skirted Elongated One-Piece Toilet28.7" × 16.1" × 28.3"Floor-mounted
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2022Compact Skirted Elongated Dual-Flush One-Piece Toilet27.4" × 14.6" × 27.6"Floor-mounted
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2021Comfort-Height Contoured Elongated Dual-Flush One-Piece Toilet27.6" × 15.7" × 25.6"Floor-mounted
Send a spec. Get a real quote in 12h.
Engineer-reviewed. cUPC · CE · ISO 9001 ready. 30–45 day lead time, FOB or CIF.
12 consecutive years at KBIS and IBS.
Standard on every shipment.
Design
One-piece body with a tornado flush port
1981 is a floor-mounted one-piece toilet in vitreous china. The flush is siphonic and the bowl uses a tornado flush port. A soft-close seat is supplied with the fixture.
Siphonic, 1.28 gpf
The standard build is single flush at 1.28 gpf (4.8 L). A 1.06 / 1.28 gpf dual flush build is . State which of the two you need on the purchase order.
3 in flush valve
The flush valve is 3 in. The trapway is fully glazed. Both figures are held in the published specification for this model.
The finish is glossy white. The rest of the range sits on the one-piece toilet page.
Fit
Footprint and rough-in
Four figures decide whether 1981 drops onto an existing drainage layout.
The published footprint is 28.0 inches front to back by 15.2 inches across, and 29.1 inches to the top of the body. The rough-in is 305 mm (12 in) measured from the finished wall to the outlet centre, with an S-trap outlet. Set the drainage to that figure before the fixture is ordered.
The 420 mm (16.5 in) figure is the ceramic rim. It is measured to the china, and the supplied soft-close seat is not counted in it.
Material
Vitreous china, glossy white
The body, the finish and the seat are fixed on this model.
Finish and glaze
One-piece vitreous china · Floor-mounted, S-trap · Glossy white · Fully glazed trapway · Soft-close seat supplied
The body is a one-piece vitreous china casting, so the tank and the bowl are a single unit rather than two parts joined on site. The finish is glossy white.
The trapway is fully glazed, meaning the glaze is carried through the trapway rather than stopping at the bowl. The soft-close seat ships with the fixture, so it does not need a separate line on the order.
Glossy white is the finish held in the published specification for 1981.
Compliance
Listing and documentation
Ask for the listing number and its current validity date in writing. Send us the destination market with the request so the document set that comes back is the one your reviewer will accept.
1981 is cUPC listed. The published specification also holds material, type, mount, finish, size and MOQ. Before it goes into a submittal, request the current listing number and certificate validity so the documentation matches your destination market.
The specification records single flush 1.28 gpf (4.8 L) as standard and a 1.06 / 1.28 gpf dual flush build on request. Decide which flush volume the submittal has to show before the order is placed, and ask for the paperwork that matches that build rather than the standard one.
Procurement
MOQ, lead time and what to send with an RFQ
and the schedule.
and a mixed 1×20 ft container is accepted, so 1981 can be combined with other models to fill the load. Lead time is 30–45 days after deposit. Carton and branding work runs through the SANIKB OEM and ODM program.
Include these details with the RFQ
- Quantity, and which flush volume: 1.28 gpf (4.8 L) single, or 1.06 / 1.28 gpf dual.
- Destination market and discharge port, so the document set is prepared against the right market.
- Whether 1981 ships alone or as part of a mixed 1×20 ft container, and the other models in that load.
- Site rough-in. This body is built to 305 mm (12 in), S-trap.
- Seat handling. A soft-close seat is supplied, so say if you are substituting or deleting it.
- Branding scope — carton, logo, packaging — if the order runs through the OEM and ODM program.
Project enquiries are answered within 12 business hours.
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
What are the overall dimensions of 1981?+
What rough-in does it need?+
How much water does it use per flush?+
Is the seat included, and what is the 420 mm figure?+
What documentation comes with it?+
What is the minimum order and how long does production take?+
1981 uses a siphonic flush with a tornado flush port. That describes the port form in the bowl, not a performance rating. The standard build is single flush at 1.28 gpf (4.8 L), with a 1.06 / 1.28 gpf dual flush build .
The flush valve is 3 in and the trapway is fully glazed. Both are fixed on this body and appear in the published specification.
The published figures below are the ones to check against a drainage layout before the fixture is released.
- Overall size: 710 × 385 × 740 mm (28.0" × 15.2" × 29.1")
- Rough-in: 305 mm (12 in), finished wall to outlet centre
- Ceramic rim height: 420 mm (16.5 in), measured to the china rim, seat not included
- Mount and trap: floor-mounted, S-trap
The 420 mm (16.5 in) dimension is taken to the ceramic rim. The soft-close seat supplied with the fixture sits above that rim and is not included in the number, so do not read the figure as a finished sitting height.
The body is one-piece vitreous china, floor-mounted, with an S-trap outlet. The finish is glossy white. The trapway is fully glazed, meaning the glaze runs through the trapway rather than stopping at the bowl.
A soft-close seat is supplied with the fixture, so a separate seat line is not required on the order.
1981 is cUPC listed. The published specification also holds material, type, mount, finish, size and MOQ. Before it goes into a submittal, request the current listing number and certificate validity so the documentation matches your destination market.
If the order is the 1.06 / 1.28 gpf dual flush build rather than the 1.28 gpf standard, ask for the paperwork against that build specifically.
. A mixed 1×20 ft container is accepted, so 1981 can be loaded alongside other models to fill a container. Lead time is 30–45 days after deposit.
Send quantity, flush volume, destination market and site rough-in with the enquiry. Carton and branding work is handled through the SANIKB OEM and ODM program. Project enquiries are answered within 12 business hours.