Square Undermount Ceramic Bathroom Sink, 17-Inch With Overflow

This basin installs from below the countertop, so the finished edge of the stone or solid surface forms the visible rim around the bowl. Fabricators can set a positive, negative, or flush reveal depending on the project specification. The 380 x 380 mm (15.0 in x 15.0 in) figure is the rim opening, and the countertop cutout follows the template supplied with the order rather than this opening dimension. Mounting hardware and the support method are scoped at the RFQ stage, since clip systems and adhesive support vary by countertop material and thickness.

As an undermount basin, the unit carries no deck-mounted faucet holes. Faucet drilling is handled at the countertop or deck, which lets builders and showroom dealers pair the sink with wall-mounted or deck-mounted faucets to suit each layout.

The drawing shows no overflow opening, so this unit is configured as a no-overflow basin. It pairs with a free-flow (non-overflow) drain rather than a standard pop-up with an overflow channel. Confirm the overflow configuration and select the matching free-flow drain before rough-in to avoid a mismatch on site.

The square ceramic bathroom basin is formed from a ceramic body for residential and commercial bathroom use. Surface finish and color options are confirmed at quotation, which gives private-label brands and project buyers room to match a basin to a wider collection or a specified palette. Material sub-type details are provided on request so specifiers can document the basin accurately.

Send Us Your Project Specs or Request Samples to evaluate the basin for your program.

The square footprint, roughly 17 inch on each exterior side, makes this undermount ceramic vanity sink a fit for single-vanity bathrooms, hotel guest rooms, and multifamily units where a compact square basin suits the countertop layout. Distributors and importers stock it as a square option alongside round and rectangular ceramic sinks.

Multifamily developers and hospitality FF&E buyers specify it across repeating units, where a consistent SKU and predictable dimensions keep countertop fabrication uniform. General contractors and showroom dealers rely on the spec data and cutout detail when they quote and install, and e-commerce resellers in the trade channel list it with accurate dimensions to reduce returns tied to fit.

SANIKB manufactures this basin factory-direct and supports OEM and ODM production for wholesale and private-label buyers. Brands can run the sink under their own mark with unbranded specification sheets and cutout templates, with finish options, dimensional adjustments, and packaging scoped per program. Sourcing managers building a private label square undermount sink line can request current capability details and documentation from our OEM team.