Rectangular Undermount Ceramic Sink Without Overflow, 20-Inch

As a 20 inch undermount bathroom sink in nominal length, the SN012 carries these confirmed dimensions and details:

• Overall exterior size: 20 in x 14 5/8 in x 7 1/2 in (510 x 370 x 190 mm), length x width x height
• Bowl top opening, interior: approximately 18.1 in x 12.6 in (460 x 320 mm), tapering narrower toward the base
• Drain opening: 1.8 in (45 mm) diameter, set within a 2.8 in (70 mm) recessed seat
• Material: ceramic
• Finish: glossy white
• Mounting: undermount
• Overflow: none

The 7 1/2 in (190 mm) figure is the overall exterior height. The basin has no faucet holes; the faucet is deck-mounted or wall-mounted separately. For exact drain location and rough-in, refer to the SN012 spec drawing.

The SN012 has no overflow. Water exits through the single drain opening only, with no secondary overflow channel routing it back toward the drain.

Because of this, the basin is paired with a free-flow, non-overflow drain. A drain built for an overflow basin has side openings that align with an overflow channel, so in a no-overflow basin those openings have nothing to seal against and can leak. Specify a free-flow drain sized to the 1.8 in (45 mm) opening, and confirm at quotation whether the drain ships with the basin.

This detail matters for distributors and plumbing supply buyers who bundle drains with basins, and for contractors who set the basin on site. Confirming the drain type up front avoids returns and rework.

Installed as an undermount ceramic sink for vanity tops, the SN012 mounts beneath a stone, quartz, or solid-surface counter. The countertop fabricator cuts the opening and finishes the edge, then the basin is set and supported from below.

Accurate cutting depends on the SN012 spec drawing. Use the drawing for the cutout template, the basin footprint, and the drain location, since the drain is offset from center rather than centered. The basin is supported during setting to carry the weight of the glazed ceramic body.

For project specifications, share the countertop material and thickness with our team so the mounting approach is confirmed before fabrication.

A glazed ceramic body in a glossy white finish defines this white rectangular undermount basin. The glazed surface is smooth for routine cleaning in residential and commercial bathrooms.

The white finish supports a consistent look across multifamily and hospitality installations that order in volume. Color and finish can be matched to an approved sample, with sampling scoped at the RFQ stage.

This rectangular undermount bathroom sink is specified for wholesale and project supply rather than one-off retail. Typical buyers and uses include:

• Multifamily developers and procurement managers standardizing bathroom fixtures across units
• Hospitality FF&E buyers furnishing guest bathrooms for single or phased openings
• Distributors and importers stocking undermount basins for resale
• Kitchen and bath showrooms and dealers quoting vanity projects
• General contractors and plumbing subcontractors installing on residential and commercial jobs
• Private-label brands building a branded bathroom fixtures line

The 20 in (510 mm) footprint and undermount format fit standard vanity widths used in apartment, hotel, and commercial bathroom builds.

SANIKB manufactures the SN012 factory-direct and supports OEM and ODM programs for the ceramic undermount basin. Customization scope, branded packaging, and private-label requirements are scoped at the RFQ stage.

MOQ, lead time, pricing, packaging, and export documentation are set per program and confirmed at quotation. Share your volumes, destination market, and project timeline so our team can return accurate terms.