20 Inch Undermount Bathroom Sink Rectangular Undermount Sink - Clean

In this review of the 20 Inch Undermount Bathroom Sink Rectangular Undermount Sink the bottom line is simple: this is a compact, well-made white ceramic undermount sink for anyone fitting a small vanity who wants a clean, minimalist look. The single biggest reason to buy is the combination of true rectangular shape and durable glazed ceramic construction that installs under the countertop for an uncluttered appearance. It suits bathrooms where a neat, modern aesthetic and easy maintenance are priorities.

Key Features

• Undermount design: Installs under the counter to create a seamless, easy-to-clean vanity top with no exposed rim.
• Compact rectangular shape: The straight vertical sides and square-like profile maximize basin area while fitting into tight vanities.
• Durable material: Made from high-density glazed ceramic for long-lasting finish and resistance to stains and scratches.
• Practical dimensions: External and internal measurements are provided so installers can plan cutouts and ensure a precise fit.
• Easy maintenance: The smooth glazed surface wipes clean quickly, reducing time spent on bathroom upkeep.
• Simple packaging: The sink arrives ready to install in white; note that drain and faucet hardware are not included.

Who It's For

This sink is ideal for homeowners, renovators, or contractors fitting a small to medium vanity who want a minimalist undermount sink with reliable ceramic construction. It works well in guest baths, powder rooms, or compact primary bathrooms where counter space is limited but a clean aesthetic is desired.

Those who need an all-in-one kit should look elsewhere, because the package does not include a pop-up drain assembly or faucet. Also, if someone requires a very shallow bowl or an integrated overflow system beyond the flat overflow style implied, they should verify compatibility before purchasing.

Pros & Cons

Pros

• Classic rectangular design that fits seamlessly under a countertop.
• High-density glazed ceramic offers a smooth, easy-care surface.
• Clear external and internal dimensions make planning and installation straightforward.
• Solid draining performance reported by users who noted it drains well.

Cons

• Package excludes drain and faucet hardware, so additional purchases are required.
• Depth received mixed feedback from customers; some find the bowl quite deep.

Specifications

Product type	Undermount rectangular bathroom sink
External dimensions	19.8in x 13.7in x 6.9in
Internal dimensions	17.7in x 11.8in x 5.3in (nominal)
Material	High-density glazed ceramic
Color	White
Overflow type	Flat overflow
Package contents	White sink only; drain and faucet not included

Our Verdict

For small-vanity projects that prioritize a neat, modern look, this rectangular undermount sink offers strong value thanks to durable ceramic construction and well-documented dimensions that simplify installation. It is a smart pick when you plan to source a separate drain and faucet and want a long-lasting, easy-to-clean basin that fits tight spaces.

Frequently Asked Questions

Does the sink include a drain or faucet?
The package contains the white sink only; a pop-up drain assembly and faucet must be purchased separately.

What are the exact dimensions?
External dimensions are 19.8in x 13.7in x 6.9in and internal dimensions are 17.7in x 11.8in x 5.3in, with nominal variance of about 0.25in.

Is the surface easy to clean?
Yes, the high-density glazed ceramic finish is smooth and resists stains, making routine cleaning straightforward.