-
Oval Fluted Drop-In Ceramic Bathroom Sink with Overflow
SN132-525 -
Round Drop-In Solid Surface Bathroom Basin with Overflow, 420mm
RST420 -
Matte Charcoal Solid Surface Square Drop-In Basin
RSCC500 -
Solid Surface Drop-In Vanity Basin, Rectangular Matte White 500x420mm
RSBG500 -
Matte White Solid Surface Rectangular Drop-In Bathroom Basin
RSW -
Solid Surface Rectangular Drop-In Vanity Basin with Integrated Deck
RSYC -
23-Inch Deep Rectangular Drop-In Ceramic Bathroom Sink
SN505 -
Popular16-Inch Square Drop-In Ceramic Vanity Sink, Single-Hole
SN1546 -
Popular20-Inch Oval Drop-In Ceramic Bathroom Sink, 3-Hole
SN021 -
Popular22-Inch Oval Drop-In Ceramic Bathroom Sink with Overflow
SN042-2008 -
Large Oval Self-Rimming Ceramic Bathroom Sink, 8-Inch Widespread
SN043-2009 -
Popular19-Inch Round Drop-In Ceramic Bathroom Sink, Widespread
SN020
Send a spec. Get a real quote in 1 business day.
B2B only. Personal follow-up from SANIKB. A SANIKB engineer reads your brief and replies with feasibility, MOQ, lead-time and an itemised price — within 1 business day.
We send quotes within 1 business day after receiving the necessary product, quantity and destination details.
12 editions of the International Builders' Show (IBS).
Factory documentation
Certification scope depends on the selected model and destination market. Request model-specific documents with your quotation.
Seven vitreous china bowls
Drop in bathroom sink sizes, model by model
Every drop in bathroom sink below is a glossy white vitreous china bowl whose rim rests on the countertop. Sizes are length × width × height; the faucet-hole column shows the layout only where the model name states one.
| Model | Shape | Size (mm) | Size (in) | Faucet holes | MOQ | |
|---|---|---|---|---|---|---|
 16-Inch Square Drop-In Ceramic Vanity Sink, Single-Hole | SN1546 | Square | 410 × 410 × 180 | 16.2 × 16.2 × 7.1 | Single hole | 20 pcs |
 Oval Fluted Drop-In Ceramic Bathroom Sink with Overflow | SN132-525 | Oval, fluted, overflow | 480 × 385 × 170 | 18.9 × 15.2 × 6.7 | Not stated | 20 pcs |
 19-Inch Round Drop-In Ceramic Bathroom Sink, Widespread | SN020 | Round | Ø 490 × 210 | Ø 19.3 × 8.3 | Widespread | 20 pcs |
 20-Inch Oval Drop-In Ceramic Bathroom Sink, 3-Hole | SN021 | Oval | 515 × 445 × 220 | 20.3 × 17.5 × 8.7 | 3-hole | 20 pcs |
 22-Inch Oval Drop-In Ceramic Bathroom Sink with Overflow | SN042-2008 | Oval, overflow | 560 × 470 × 200 | 22.1 × 18.5 × 8.0 | Not stated | 20 pcs |
 Large Oval Self-Rimming Ceramic Bathroom Sink, 8-Inch Widespread | SN043-2009 | Oval | 575 × 435 × 195 | 22.7 × 17.2 × 7.7 | 8-inch widespread | 20 pcs |
 23-Inch Deep Rectangular Drop-In Ceramic Bathroom Sink | SN505 | Rectangular | 590 × 465 × 230 | 23.2 × 18.3 × 9.1 | Not stated | 20 pcs |
"Not stated" means the model name gives no faucet-hole layout; name the layout you need in the inquiry so it can be confirmed for that model.
Spread of the ceramic range
What the numbers say across the drop in sinks
Across the seven ceramic models, the smallest outline is SN1546 at 410 × 410 mm and the longest is SN505 at 590 mm. The rows below give the full spread.
- Length
- 410 mm (SN1546) to 590 mm (SN505), or 16.2" to 23.2"
- Width (round SN020 excluded)
- 385 mm (SN132-525) to 470 mm (SN042-2008)
- Overall height
- 170 mm (SN132-525) to 230 mm (SN505), or 6.7" to 9.1"
- Shapes
- 4 oval, 1 round, 1 square, 1 rectangular
- Overflow named in the model
- SN042-2008 and SN132-525
- Finish
- Glossy White on all seven
- MOQ
- 20 pcs per ceramic model
Match the bowl to the brief
Which drop in bathroom sink fits which project
Start from the faucet you plan to specify, then pick the drop in vanity sink. Four of the seven ceramic models name a faucet layout: single hole, 3-hole, widespread and 8-inch widespread.
Single-hole faucet, square bowlThe smallest ceramic outline here at 410 × 410 mm, named for a single-hole faucet. It shares a square shape with the RSCC500 solid-surface model if a project mixes materials.
8-inch widespread setsA large oval named for an 8-inch widespread faucet, listed at 575 × 435 × 195 mm.
Three-hole faucetA 515 × 445 × 220 mm oval named as 3-hole, for projects that specify a three-hole faucet.
Longest ceramic bodySN505, the only rectangular ceramic model, has the longest (590 mm) and tallest (230 mm) listed size of the seven.
Decorative rim detailA fluted oval with overflow, 480 × 385 × 170 mm, and the only fluted model in the collection.
Non-white finishMatte Charcoal solid surface in a square drop-in format; the only non-white model in the collection.Ceramic or solid surface
Two types of drop in sinks: ceramic or solid surface
Seven models are vitreous china ceramic; five are solid surface. Choose the material first, because MOQ and finish differ.
Vitreous china, glossy white
SN020, SN021, SN042-2008, SN043-2009, SN132-525, SN505 and SN1546. MOQ 20 pcs per model, so a distributor can stock several shapes without a large commitment on any one.
Solid surface, matte
RST420 (round, overflow, 420 mm), RSBG500 (rectangular, 500 × 420 mm), RSW and RSYC (rectangular, matte white) and RSCC500 (square, matte charcoal). RSYC adds an integrated deck. RSW and RSYC carry a 300 pcs MOQ.
Contractors and project buyers
Scheduling one bowl model across repeat units keeps a single MOQ line and one set of dimensions for every vanity on the job.
Private label
Custom sizes, glaze finishes and tap-hole drilling are available on request through our OEM/ODM service page.
Rim on the counter
How to specify a drop in bathroom sink, from material to MOQ
A top mount sink is chosen in five decisions; settle them in this order before the countertop drawing is finalized.
Material
Pick vitreous china (seven glossy white models) or solid surface (five matte models) first, since finish and MOQ follow from it.
Faucet layout
Match the faucet plan to SN1546 (single hole), SN021 (3-hole), SN020 (widespread) or SN043-2009 (8-inch widespread), or state the layout you need for the other models.
Overflow
Overflow is named on SN042-2008, SN132-525 and the solid-surface RST420; say whether your specification requires one.
Size against the top
Use the listed length × width × height to shortlist, then ask for the cut-out dimensions of the chosen model in your inquiry.
Quantity
Plan 20 pcs per ceramic model; RSW and RSYC carry a 300 pcs MOQ.
Send this with your inquiry
Quoting a drop in ceramic sink order
Pricing is quoted per order. List model codes, quantity per model, finish, the faucet-hole layout you need and whether you want an overflow, plus your vanity or countertop drawings. Add any custom size, glaze or tap-hole drilling request.
Measuring comes before the order. Measure the countertop and vanity, then request the cut-out drawing of the chosen drop in bathroom sink so the opening can be cut and the rim set in place on the counter. The listed sizes are overall length × width × height, not cut-out sizes, so it is important to secure that drawing before the top is fabricated. State the drain and waste fitting you plan for each bathroom sink, and whether an overflow is required; only SN042-2008, SN132-525 and RST420 name one.
If the brief asks for the smallest drop in bathroom sink, start with SN1546, the most compact ceramic outline at 410 × 410 mm; among the solid-surface models, published sizes are RST420 at 420 mm round and RSBG500 at 500 × 420 mm. If it calls for a non-white bathroom sink, RSCC500 in Matte Charcoal is the one option.
For distributors who stock drop in sinks, the collection gives variety within a short list: four shapes, two material types and four named faucet layouts across 12 models. A first stock order can mix several ceramic shapes at 20 pcs each, which keeps the range flexible while you find which bathroom sink sizes your customers reorder. Ask us to provide the lead time per model with the quote.
We reply in writing within 12 business hours.
Factory-Direct Supply and Single-Container Ordering
The ceramic drop-in bathroom sinks are manufactured in SANIKB’s own ceramic factory in vitreous china. The current range also includes solid-surface models; SANIKB Group manufactures non-ceramic lines through group-controlled production using SANIKB-owned moulds or tooling, group specifications and group QC. Select the model and material in the basin schedule rather than treating every listing as ceramic. MOQ is one full 20ft container, mixed freely.
Why Choose Drop-in Basins Over Undermount
Drop-in basins set into a cut-out from above, resting on the countertop via a finished rim. They install faster than undermount models, suit almost any countertop material including laminate, and simplify replacement and field service. The visible rim hides edge tolerances, reducing fabrication precision needs. For projects prioritizing speed, budget flexibility and easy maintenance, drop-in ceramic basins are the practical specification choice.
Sizes, Cut-Outs and Faucet Holes
For each drop in bathroom sink, compare the outside rim, cutout, bowl opening and underside clearance with the intended vanity and countertop. Request the selected-model drawing or cutout information before fabrication, then confirm the countertop support and sealing method with the installer. Check the listed faucet-hole layout and whether a deck-mounted or wall-mounted faucet is planned; a category name does not establish a particular hole configuration. Include model codes, materials, quantities and vanity drawings in the inquiry so dimensions, documentation and any separate faucet or waste requirements can be confirmed before production.
OEM, ODM and Private Label
Because these ceramic basins come from our own factory, we support OEM, ODM and private-label programs for distributors and brands. We adjust glaze colors, dimensions, bowl shapes and faucet-hole layouts, and apply your logo, packaging and branded cartons. Our engineering team works from your drawings or develops new molds, delivering samples for approval before mass production so your specification is met exactly.
Quality, Compliance, Service and After-Sales
Ceramic basins are kiln-fired, inspected and water-tested to consistent standards, with compliant glazing and packaging built for export transit. Our team replies within 12 business hours on quotes, samples and production updates. After-sales responsibility is firm: any quality problems are ours to fix. Defective goods are replaced or fully compensated, and we never shirk responsibility. That commitment protects importers, distributors and contractors across every order we ship.