17 in x 13 in Rectangular Porcelain Undermount Vanity Sink - Flat

In this review the MSI 17 in x 13 in flat rectangular porcelain undermount sink is evaluated for homeowners and remodelers seeking a clean, hotel-style basin that fits standard cabinetry. The bottom line: this sink is for anyone who wants a durable, easy-to-clean white porcelain undermount with a flat 7 1/8 in basin and a triple overflow system; it offers straightforward installation into a minimum 21 in cabinet and reliable long-term performance without fuss.

Key Features

• Flat basin design: The 7 1/8 in flat bowl provides a modern, low-profile look that pairs well with stone or solid-surface vanity tops.
• Undermount installation: Designed for a clean, built-in appearance, the sink hides the rim beneath the countertop for easier surface cleaning.
• Durable porcelain construction: The white porcelain resists staining and is simple to wipe clean, retaining its finish under daily use.
• Triple overflow: Triple overflow holes reduce the risk of accidental overfill and add practical safety for busy bathrooms.
• Cabinet compatibility: Fits a minimum 21 in cabinet base, making it suitable for many standard vanities and replacement projects.
• Standard drain opening: The sink's 1.68 in drain diameter accepts common drain fittings for easy hookup.

Who It's For

The sink fits homeowners updating a master, guest, or ensuite vanity who want a hotel-like, contemporary look without elaborate maintenance. It is also well suited to contractors and DIYers replacing a cracked undermount basin because the interior and exterior dimensions align with common vanity cutouts.

Those who should look elsewhere include people needing an integrated faucet deck or a vessel sink that sits above the counter, and buyers who require very deep basins for specialty tasks, since this model has a moderate bowl depth rather than an extra-deep profile.

Pros & Cons

Pros

• Attractive flat rectangular shape gives a modern, hotel-like appearance as noted by customers.
• Porcelain finish is easy to clean and holds up well to daily use.
• Fits a 21 in cabinet and has a standard 1.68 in drain for straightforward replacements and installations.
• Triple overflow adds practical protection against overfilling.

Cons

• The bowl depth is moderate (5.5 in to 7.125 in), so buyers seeking a very deep sink should consider other models.
• Nominal dimensions may vary by 0.25 in, so precise countertop cutouts should be measured before installation.

Specifications

Our Verdict

This undermount rectangular porcelain sink is a solid, practical choice for most bathroom remodels and replacements; it combines a low-profile, attractive flat basin with easy maintenance and standard dimensions that simplify installation. For homeowners who want a clean, hotel-style look without specialty features, it represents good value and dependable performance.

Frequently Asked Questions

Will this sink fit a standard vanity?
It fits a minimum 21 in cabinet base and uses common dimensions, but measure your countertop cutout and allow for the nominal +/- 0.25 in variation.

Does it include an overflow?
Yes, the sink has triple overflow holes to help prevent accidental overfill.

What drain size does it use?
The sink has a 1.68 in drain diameter and accepts standard drain fittings for undermount installation.