12x18 Under Mount Bathroom Sink

White

KOHLER® Ladena's upswept curves offer a generous 21" rectangular undermount sink and a striking contemporary look, particularly when paired with a countertop that exposes the basin's glazed underside.

We purchased two of the sinks for an Undermount installation in a solid surface countertop. They were easy to install finish is good and we are looking forward to many years of usage. . Ricky. US. Sat Aug 16 2025

Constructed of thick, solid porcelain ceramic, the Krona collection from Ruvati offers undermount bathroom sinks that fit seamlessly into your vanity. For superior strength and long lasting durability, the vitreous porcelain enamel forms a smooth glossy surface that is extremely resistant to scratching, chipping or crazing. The smooth surface of the Krona collection drains water easily and does not stain, so your sink will remain dry and easy to clean. For a classic look that will never go out of style, choose the Krona collection for your bathroom or powder room vanity.

Sink is great. Unfortunately one came totally damaged in pieces but Wayfare replaced it without any questions asked. The replacement came in perfect condition.. Vera. Chagrin Falls, OH. Tue Mar 24 2026

Ceramic bathroom sinks is crafted from high-quality ceramic materials, resistant to scratches, cracks, and chips, ensuring longevity and minimal maintenance. Available in a variety of styles, colors, and designs, they allow homeowners to select a sink that complements their bathroom décor and personal taste, enabling the creation of unique and personalized bathroom designs.

Great sink, perfect dimensions for a small bathroom counter at 15" wide and 10" deep on the inside. Nice finish and modern square corners too. We first ordered another brand that was 10" deep too but only 13.5" wide. And it was too small but also looked "off" in dimensions. A 3 to 2 ratio for width to depth is aesthetically perfect.. Anonymous. Thu May 21 2026

White

With its unique, oblong shape and clean lines, KOHLER® Ladena evokes casual elegance. This spacious and distinctive rectangular undermount bathroom sink pairs classic style with versatility, and is a great choice to complement both traditional and modern bathrooms.

Great Kohler sink! Deep enough to drain properly. Bought 3 for my remodel.. Kelly. Tue May 19 2026

Transform your bathroom into a luxurious oasis with our 18" wide white vitreous china rectangular undermount bathroom sink. Offering a seamless blend of style and functionality, this sink is a must-have addition to modern bathrooms. Its clean lines and crisp white finish effortlessly complement any decor, while the undermount design creates a polished, integrated look. Crafted from premium vitreous china, this sink is not only stunning but also built to withstand the test of time. Non-porous surfaces are easy to clean and maintain. Complete with an overflow hole for added convenience, it's the perfect choice for discerning homeowners seeking both beauty and practicality.

Standard Undermount sink. I like the fact that it doesn’t have corners where things get stuck and it’s easy to clean.. Matthew. Oakland, CA. Sun Apr 19 2026

The TOTO® 20 Inch Rectangular Undermount Bathroom Sink with CEFIONTECT features a modern shallow basin that is ideal for narrow countertops. It features a sleek rimless design and is made with durable vitreous china for long-lasting beauty. This sink is coated with TOTO's CEFIONTECT glaze that prohibits mold and debris from adhering to ceramic surfaces. This technology helps keep your sink cleaner for longer and reduces the number of harsh chemicals used for cleaning. Included: Sink, installation template, and mounting screw set for wood countertops. Purchase separately: Compatible faucet and drain. Mounting assembly THU410 is required for marble/granite type countertop installation and must be purchased separately.

I love this sink. I put it in four different bathrooms.. Erin. Redwood City, CA. Fri Feb 13 2026

Beige

This DeerValley rectangular under-mount bathroom sink has its edge perfectly hidden under the countertop, creating a smooth and seamless transition that reduces the use of countertop space and makes the countertop easier to clean. The enamel-coated surface of this under-mount sink is very smooth and glossy, with low density and low water absorption. The smooth finish of this bathroom sink is better at resisting bacteria, inhibiting the growth of bacteria, and keeping the surface hygienic, and a fine glossy white finish usually complements most modern bathroom designs. What's more, this vitreous china under-mount bathroom sink has a rigid construction that resists scratching and cracks during daily use to ensure longevity.

These sinks were perfect for my bathroom remodel! They are a great size and the price was right.. Jennifer. St. George, Utah. Fri Apr 10 2026

Dark Grey

Build a bold bathroom with the Ariaso collection from Ruvati. Stepping away from traditional porcelain, this collection offers modern, stylish sinks that will make your bathroom truly unique. From typical stainless steel to shades of gold and black, these sinks feature an innovative nano-PVD finish that is resistant to wear and abrasion. The Ariaso collection can be useful in both residential and commercial properties. Multiple installation options and arc-shaped bowl adds a beautiful, modern touch to the sink and provides exceptional drainage. To truly transform your bathroom space, experience the Ariaso collection.

Beautiful finish. We have had it installed in our showroom for over a year and it still looks perfect. Lori. Auburn, MA. Mon Feb 02 2026

Matte Black

Sleek and contemporary, part of the Collection, the 18" Rectangular Under-Mount Bathroom Sink features a timeless design that suits both traditional and modern bathroom decors. Blend it with your choice of countertops for a clean look.

This was the perfect sink for our needs. I needed a black sink and it couldn’t be too big because our vanity and the powder room was quite small. It looks great and I am very, very happy with the purchase.. Hope. Grand Junction, CO. Sun Apr 26 2026

White

Embrace a sophisticated look with Verticyl, featuring vertical sides for a deep, geometric rectangular basin. An under-mount installation seamlessly integrates this sink into your bath or powder room design. It features an overflow drain and Undermount installation.

Nice, but was quite small. I didn't pay close enough attention to size. M. Mukilteo, WA. Sat Mar 07 2026

Elevate the style of your bathroom with our Ceramic Rectangular Undermount Bathroom Sink. This exquisite sink is designed to provide a sophisticated and modern look to your space. Crafted from high-quality ceramic, it not only offers durability but also adds a touch of elegance to your bathroom decor. With its rectangular shape, this undermount sink is perfect for center placement on your vanity countertop. Designed for under-counter installation, it seamlessly integrates with your countertop, creating a sleek and cohesive look.

Good sink. Michelle. Mclean, VA. Sat Apr 18 2026

This undermount bathroom ceramic sink offers a sleek and easy-to-clean design. Made of premium ceramic, this sink exhibits low water absorption and excellent resistance to acids, ensuring long-lasting durability. With its rectangular shape, this undermount sink is perfect for center placement on your vanity countertop. The smooth and polished surface is resistant to stains and can be easily maintained. Designed for under-counter installation, it seamlessly integrates with your countertop, creating a sleek and cohesive look.

Exactly what I was looking for. Can’t wait to install it.. Susan. LA. Sat Nov 15 2025

White

With its unique curved bottom and clean lines, this evokes casual elegance. This spacious and distinctive sink has a smooth, glazed rim for a polished look and is versatile enough to complement traditional and modern bathrooms.

Happy with the purchase, Good sink .. Socorro. Houston, TX. Mon Dec 01 2025

White

Rectangular vitreous ceramic lavatory single-bowl undermount 20" x 15" x 7-1/2"

Cracked within the first year.. Albania. Waxhaw, NC. Thu Nov 27 2025

【High-quality Material】 This bathroom undermount sink is made of premium quality ceramic with low water absorption and acid resistance. The smooth and polished surface makes it very resistant to stains and be easily maintained. Comfortable hand feeling,the glaze texture is delicate and smooth, wear-resistant and does not fade.

Lovely sinks. Came with no cracks or issues. Excited to have these installed. Avena And David. TN. Sun Apr 27 2025

Beige

The Deervalley rectangular undermount bathroom sink provides a refined look for your bathroom decoration. Its spacious rectangular design perfectly combines classic style and versatility, and it also provides three white, bone, and black colors for choice, making it an excellent adapt to complement traditional and modern bathrooms. This undermount bathroom sink with overflow is made from vitreous china, making it sturdy, durable, and effective against stains and germs. An overflow hole can prevent excessive water filling. Undermount installation saves more space on your countertop, meeting your space requirements.

Love the quality and perfect size for my vanity! Reasonable price too thank you!. Anonymous. Tue Apr 28 2026

Cotton

Refresh the powder room or master suite with this lovely sink, perfect for your next DIY bathroom project.

I LOVE my Toto sinks. They are large and the curves inside the bowl are really beautiful and modern. Clean looking, no flaws. Love knowing my sinks match my Toto toilet lol.. Jessica. Cerritos, CA. Sun May 31 2020

This DeerValley rectangular undermount bathroom sink has its edge perfectly hidden under the countertop, creating a smooth and seamless transition that reduces the use of countertop space and makes the countertop easier to clean. And this vitreous China undermount bathroom sink has a rigid construction that resists scratching and cracks during daily use to ensure a longevity. The enamel-coated surface of this undermount sink is very smooth and glossy, with low density and low water absorption. A smooth finish is better at resisting bacteria, inhibiting the growth of bacteria and keeping the surface hygienic, and a fine glossy white finish usually complements most modern bathroom designs.

Love this little sink. It’s not easy to find one that fits a small bathroom. This one is perfect, and at a great price.. Sara. Springfield, MO. Fri May 23 2025

Sleek, high-gloss rectangular sink crafted from durable, non-porous white porcelain with a baked-on glaze for effortless cleaning and lasting shine. Its elegant, space-saving profile suits both traditional and modern vanities. Designed for undermount installation in cabinets 19″ and wider, the P-201 fits a 1¾″ drain (pop-up drain not included) and includes two interchangeable overflow caps in Polished Chrome and Matte Black. cUPC-certified and backed by a limited lifetime warranty.

I bought this a month ago, easy installation, looks stylish. Nice workmanship and materials/. Felix Wan. Richmond Bc Canada. Tue May 20 2025

White

The great point ceramic rectangular undermount bathroom sink with overflow provides a sophisticated look to your bathroom. It has a contemporary style that complements the existing bathroom decor. This sink is made from ceramic, which makes it sturdy and durable. It is available in an exquisite finish that adds to its style quotient. It has a rectangular design that makes it perfect for center placement. The great point ceramic rectangular undermount bathroom sink with overflow from Nantucket sinks makes a fine addition to your bathroom. This sink can be easily wiped clean using a soft dry cloth. This ensures easy maintenance and keeps it looking good for a long time.

Difficult size to find and y'all had it!!. K. Milton, FL. Wed Feb 18 2026

Sleek, high-gloss rectangular undermount sink in durable, non-porous white porcelain with a baked-on glaze for easy cleaning. Classic lines maximize counter space. Fits standard undermount installation in cabinets 19″ and wider, accommodates a 1¾″ drain (pop-up drain not included) and includes two overflow caps in Polished Chrome & Matte Black. cUPC-certified and backed by a limited lifetime warranty

I bought this a month ago, easy installation, looks stylish. Nice workmanship and materials/. Felix Wan. Richmond Bc Canada. Tue May 20 2025

Colonial White

Created with modern simplicity, this lavatory offers a beautifully rimless, rectangle design. Features a generously wide basin, large backsplash, and rear overflow. ADA compliant.

This is the perfect sink for a smaller cabinet. Very well made.. Freedom. Woodinville, WA. Fri Dec 19 2025

Sink was perfect for our custom made vanity. Clipped perfect to our countertop. Would recommend.. Alyssa. Aberdeen, NJ. Fri May 20 2022

Create a clean and contemporary look in your bathroom with the streamlined undermount bathroom sink design of Elavo Ceramic Bathroom Sinks from Kraus. Made from high-quality vitreous china, these sinks offer the simple and timeless aesthetic of porcelain enamel, with durable construction for everyday use. The high-gloss porcelain glaze with a smooth non-porous finish is stain resistant and easily wipes clean. Undermount bathroom sink installation creates a seamless transition between sink and countertop, with no exposed mounting deck, allowing you to easily wipe water into the sink when cleaning your bathroom sink vanity. An overflow drain helps prevent the sink from overflowing while the primary drain is closed. Standard US drain opening is compatible with most plumbing fittings

Beautiful sinks at a reasonable price. Time will only tell if they continue to look just as nice over the years.. Brenda. Mesa, AZ. Thu Jan 22 2026

Black Black

Embrace a sophisticated look with KOHLER® Verticyl, featuring vertical sides for a deep, geometric basin. An undermount installation allows this rectangular undermount bathroom sink to seamlessly integrate into your bath or powder room design.

I love the unique color of this sink and I’m very happy with it. Jeff. Aiken, SC. Tue Jan 13 2026

Create a clean and contemporary look in your bathroom with the streamlined undermount bathroom sink design of Elavo Ceramic Bathroom Sinks from Kraus. Made from high-quality vitreous china, these sinks offer the simple and timeless aesthetic of porcelain enamel, with durable construction for everyday use. The high-gloss porcelain glaze with a smooth non-porous finish is stain resistant and easily wipes clean. Undermount bathroom sink installation creates a seamless transition between sink and countertop, with no exposed mounting deck, allowing you to easily wipe water into the sink when cleaning your bathroom sink vanity. An overflow drain helps prevent the sink from overflowing while the primary drain is closed. Standard US drain opening is compatible with most plumbing fittings

Great quality. The linear quality of the "bowl" is why I selected these sinks.. Stephen. Kent, WA. Tue May 05 2026

White

KOHLER® Caxton has a simple, streamlined design that's as versatile as it is attractive. This oval undermount bathroom sink's easy-to-clean sink combines the sleek look of an integrated basin with a timeless design that suits both traditional and modern bathroom decors. Caxton creates a sleek transition from the smooth oval basin to just about any solid-surface countertop.

Used this in the newly renovated powder room and love it.. Rodney. NE. Wed Apr 22 2026

Transform your bathroom into a luxurious oasis with our 21" wide white vitreous china rectangular undermount bathroom sink. Offering a seamless blend of style and functionality, this sink is a must-have addition for modern bathrooms. Its clean lines and crisp white finish effortlessly complement any decor, while the undermount design creates a polished, integrated look. Crafted from premium vitreous china, this sink is not only stunning but also built to withstand the test of time. Complete with an overflow hole for added convenience, it's the perfect choice for discerning homeowners seeking both beauty and practicality.

Nice simple sink. Perfect depth for my primary bathroom. I ordered 2 and they look great!. Jody. Jim Thorpe, PA. Sun May 17 2026

White

Caxton has a simple, streamlined design that's as versatile as it is attractive. This easy-to-clean sink combines the sleek look of an integrated basin with a timeless design that suits both traditional and modern bathroom decors. Caxton creates a sleek transition from the smooth rectangular basin to just about any countertop.

Very satisfied as we put them in our new home. They clean easily.. Sheila. US. Sun May 17 2026

Beige

White Ceramic Rectangular Undermount Bathroom Sink with Overflow provides a refined look for your bathroom decoration. Its spacious rectangular design perfectly combines classic style and versatility, making it an excellent choice to complement traditional and modern bathrooms. This undermount bathroom sink is made from vitreous china, making it sturdy, durable, and effective against stains and germs. Undermount installation saves more space on your countertop, meeting your space requirements. An overflow hole can prevent excessive water filling.

Fits the area we needed it to! Looks perfect. Anna. Denver, NC. Mon May 18 2026

Sleek, high-gloss rectangular sink crafted from durable, non-porous white porcelain with a baked-on glaze for effortless cleaning and lasting shine. Its elegant, space-saving profile suits both traditional and modern vanities. Designed for undermount installation in cabinets 19″ and wider, the P-201 fits a 1¾″ drain (pop-up drain not included) and includes two interchangeable overflow caps in Polished Chrome and Matte Black. cUPC-certified and backed by a limited lifetime warranty.

Perfect size for our powder room. Great quality.. Donna. Monument, CO. Fri Mar 27 2026

18" L x 12" W, White

Elevate your bathroom vanity with this premium rectangular undermount bathroom sink, the perfect blend of seamless style, hygienic design, and long-lasting durability for master bathroom remodels, guest bath overhauls, powder room refreshes, and rental property upgrades. This under-counter vanity basin is crafted from high-temperature fired porcelain with a smooth non-porous high-gloss glaze, delivering exceptional stain resistance, effortless daily maintenance, and a sleek seamless look that eliminates hard-to-clean gaps between the sink and countertop. Its timeless bright white minimalist design seamlessly complements modern, farmhouse, minimalist, and transitional bathroom decor styles, instantly upgrading the aesthetic and functionality of your bathroom while creating a more hygienic, easy-to-clean space for your household.

I love this sink because it is large and deep. Very clay with my quartz countertop and Wayfair vanity base. In love!. Leann. US. Mon Aug 12 2024

This undermount bathroom sink is crafted with durable solid ceramic, low water absorption, smooth and polished surface, very resistant to scratch and stains, easy to keep clean. The rectangular sink can stand up to chipping and keep as pure white as new even after years of use.

Lydia. Oakville, ON. Wed Mar 11 2026

Update your bathroom with the clean look of a KRAUS Elavo™ Series ceramic sink. The versatile design features a premium baked-on glaze for a high-gloss finish that’s easy to clean and complements any décor from classic to contemporary.

Beautiful shape and perfect size!. Hannah. Watkinsville, GA. Mon Nov 13 2017

White

Embrace a sophisticated look with KOHLER® Verticyl, featuring vertical sides for a deep, geometric basin. An undermount installation allows this square undermount bathroom sink to seamlessly integrate into your bath or powder room design.

We needed two (twin) sinks to fit in our bathroom vanity. They are perfect.. Ron. Mesa, AZ. Wed Apr 01 2026

Embrace a sophisticated look with the Verticyl undermount bathroom sink. This modern sink features vertical sides to create a deep, geometric basin. The undermount installation allows this sink to seamlessly integrate into your bath or powder room. Pair with your choice of beautifully crafted KOHLER faucet collections for a cohesive design.

We have a double sink bathroom & put in two of these sinks. They look great! The sink is deep enough and great rectangular shape! Love it!. Jea. Michigan. Wed Jan 03 2024

White

KOHLER® Caxton has a simple, streamlined design that's as versatile as it is attractive. This oval undermount bathroom sink's easy-to-clean sink combines the sleek look of an integrated basin with a timeless design that suits both traditional and modern bathroom decors. Caxton creates a sleek transition from the smooth oval basin to just about any solid-surface countertop.

Nice quality sink.. Karen. Fri Mar 20 2026

Black

Constructed of thick, solid porcelain ceramic, the Krona collection from Ruvati offers undermount bathroom sinks that fit seamlessly into your vanity. For superior strength and long lasting durability, the vitreous porcelain enamel forms a smooth glossy surface that is extremely resistant to scratching, chipping or crazing. The smooth surface of the Krona collection drains water easily and does not stain, so your sink will remain dry and easy to clean. For a classic look that will never go out of style, choose the Krona collection for your bathroom or powder room vanity.

We looked all over the internet for a smaller size rectangular undermount vanity sink in black. Only Wayfair offered what we needed. Bought two! Highly recommend.. Anonymous. Wed Nov 27 2024

The ADA-1218 undermount sink from Allora USA combines sleek design with ADA-compliant functionality, making it ideal for modern, accessible bathrooms. Tailored for ADA-style cabinets, this basin features a reduced depth for easier installation. Its minimalist square shape maximizes utility in compact spaces while providing ample room for daily use. Constructed from high-gloss, vitreous china, the sink is easy to maintain, resistant to stains, and scratch-resistant. Allora USA's dedication to aesthetic appeal and enduring durability is evident in this sink, designed to withstand everyday wear and tear.

I use a wheelchair and this is shallow enough that I can fit under it without a problem but still has a good curve to it that should work fine for a bathroom sink.. Thomas. Minneapolis, MN. Fri Oct 31 2025

Gunmetal Black

Build a bold bathroom with the Ariaso collection from Ruvati. Stepping away from traditional porcelain, this collection offers modern, stylish sinks that will make your bathroom truly unique. From typical stainless steel to shades of gold and black, these sinks feature an innovative nano-PVD finish that is resistant to wear and abrasion. The Ariaso collection can be useful in both residential and commercial properties. Multiple installation options and arc-shaped bowl adds a beautiful, modern touch to the sink and provides exceptional drainage. To truly transform your bathroom space, experience the Ariaso collection.

These sinks are great, highly recommend!. Marilyn. Cincinnati, OH. Fri Mar 06 2026

Constructed of thick, solid porcelain ceramic, the Krona collection from Ruvati offers undermount bathroom sinks that fit seamlessly into your vanity. For superior strength and long lasting durability, the vitreous porcelain enamel forms a smooth glossy surface that is extremely resistant to scratching, chipping or crazing. The smooth surface of the Krona collection drains water easily and does not stain, so your sink will remain dry and easy to clean. For a classic look that will never go out of style, choose the Krona collection for your bathroom or powder room vanity.

Love the quality and perfect size for my vanity! Thank you. Anonymous. Tue Apr 28 2026

Matte White

This 19.7-inch bathroom undermount ramp sink from Badeloft features a slope-to-drain design. The ramp basin slopes gently toward the drain, so water flows out completely without pooling. Stone resin is non-porous, meaning it won't stain or absorb moisture over time. Includes mounting hardware for undermount installation. Backed by a 10-year residential warranty.

Very modern looking. I’m glad I opted for a deferent look. I haven’t had it install yet but so far so good. Anonymous. West Palm Beach, FL. Tue Mar 10 2026

Translucent White

Inspired by studio pottery, the KOHLER® Derring collection celebrates the inherent beauty and authenticity of handcrafted ceramics. Each oval undermount bathroom sink is a one-of-a-kind creation, finished with unique artisanal glazes that produce fascinating surface effects .A hand-carved texture accentuates the subtle tonal variations of the glazes. Featured in neutral hues, this sink can be the centerpiece of your bath, or it can serve as a unifying element that pulls everything else together.

OMG!! These sinks are beautiful. I put them in a Moroccan styled bathroom and they really look amazing in there. They do take a little extra care to clean all the little indentations, but so what. I get so many compliments on them.. Anonymous. Tue Mar 03 2026

Moen’s bathroom sinks allow users to enhance their experiences with water in the bathroom while perfectly complementing any bathroom design. The Undermount Sink is designed to seamlessly integrate into a new or pre-existing countertop, adding a stylish and functional fixture for your bathroom vanity. Built with clean, white vitreous china paired with a high-gloss porcelain finish, it boasts cleanliness in both look and function. The rectangular design offers modern appeal.

Very nice for the master bath project we’re doing! Love it. Angela. FL. Sat May 02 2026

Sleek and contemporary, part of the collection, the bathroom sink features a timeless design that suits both traditional and modern bathroom decors. The sink will go along with any countertop you may choose. Designed from durable ceramic the under-mount sink is a lasting selection for any setting.

These are great size.I use them in several projects. Danyelle. Seabrook, TX. Thu Mar 26 2026

Discover our DeerValley sleek rectangular white sink, blending European aesthetics with modern flair. Versatile for indoor or outdoor use, its durable ceramic construction and smooth surface ensure long-lasting elegance. Effortless maintenance and efficient water drainage make it an ideal choice for any space.

Love how these sinks turned out ! Pretty spacious deep and great quality . Would highly recommend. I was competing it with a very expensive brands out there and this was a great deal... Jaspreet. Irving, TX. Fri Apr 17 2026

Ogonbrick undermount bathroom sinks are a popular choice for modern bathrooms due to their durability, design flexibility, and ease of maintenance. With a heat-resistant composition, our white undermount porcelain bathroom sinks can effortlessly withstand the rigors of daily use, including hot water and styling tools. Our porcelain bathroom sinks offer versatility to suit any bathroom decor, from contemporary to traditional. Additionally, Crafted for easy cleaning and long-lasting durability, this porcelain bathroom sink serves as the perfect complement to any bathroom vanity top, promising years of enduring beauty and unmatched quality.

Our bathroom sink is made of high density ceramic. Durable, smooth, non-porous and polished surface with low water absorption for more easily to clean and maintain.