Name: Project Source 31-in White Cultured Marble Single Sink 4-in Centerset Faucet Mount Bathroom Vanity Top
Brand: Project Source
SKU: 5001952471
Rating: 4.2 (475 reviews)

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The 31 inch Cultured Marble Vanity Top with integral oval basin in white is the perfect complement to finish off a 30-in vanity. This top measures 31-in W x 22-in D and fits most 30 inch vanities with center basin orientation. The clean lines of this vanity top make it an ideal solution for many styles and trends while the integrated backsplash makes for a seamless design. Pair with the 21-in Cultured Marble Sidesplash (Item # 2694697), sold separately, to complete your look and provide added protection to your walls against excess moisture. For your convenience, this vanity top is predrilled with holes to accommodate a 4-in centerset faucet (sold separately).

Project Source cultured marble bathroom vanity top provides a transitional, seamless surface in a versatile white finish
Pre-drilled for a 4-in centerset faucet for easy installation (faucet sold separately)
Matching Sidesplash (Item # 2694697) sold separately
31-in W x 22-in D bathroom vanity top fits 30-in W x 21-in D vanity cabinets
Flat edge profile offers a clean and contemporary look; no overflow hole to promote a bacteria-free environment
Integrated backsplash protects walls from water damage, all-in-one solution ideal for the DIY or Pro customer
Single integral oval center set basin for seamless one-piece design
Easy to install with silicone caulking, sold separately
Project Source Cultured Mable White Oval Vanity Top comes with a Limited Lifetime Warranty

General
Color/Finish Family	White	Sink Material	Cultured marble
Number of Sinks	Single sink	Sink Type	Integral
Number of Faucet Holes	3	Manufacturer Color/Finish	White
Sink Color	White	Faucet Mount Type	4-in centerset
Material	Cultured marble	Edge Profile	Flat
Sink Location	Center	Top Material	Cultured marble
Sink Shape	Oval

Dimensions
Depth of Sink (Inches)	5	Actual Depth (Inches)	22
Actual Width (Inches)	31	Common Width (Inches)	31
Common Depth (Inches)	22	Top Thickness	7/8-in
Popular Widths	30-in	Top Width/Sink Count	31-in single sink
Weight (lbs.)	26.63

Features
Overflow Drain Included	No	Lowe's Exclusive	Yes
Backsplash Included	Yes	Side Splash Included	No
Sink Included	Yes

Compatibility
Compatible Cabinet Width (Inches)	30	Compatible Side Splash Model Number(s)	LSS21-3

Warranty
Warranty	5-year limited

Certifications
CA Residents: Prop 65 Warning(s)	Prop 65 WARNING(S) -	ADA Compliant	Yes

Miscellaneous
UNSPSC	30162200

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Review

4.2 out of 5

475 Reviews

76% Recommend this product

Ratings may include incentivized customer reviews.

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+ 34

What Customers Are Saying

Customers overwhelmingly praise the vanity top's bright white design, integrated sink-backsplash combo, and modern aesthetic, with many noting it delivers high-end looks at an affordable price. Installation is consistently described as straightforward and hassle-free, with the lightweight construction and pre-drilled faucet holes making the process simple. Most reviewers highlight exceptional value and recommend the product. A few mention the shallow backsplash height requires additional patching, and some report minor surface scratches or the absence of an overflow drain, though these concerns are outweighed by overall satisfaction.

Customer review summary generated by AI, including incentivized reviews.

475 Customer Reviews

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garbage

Would Not Recommend

took this out of the box and it is so thin and weak. A piece had broken off in the box with no apparent damage to the box. If you are looking for a cheap fix to your vanity this is for you

garyOctober 1, 2026
From 49-in White Cultured Marble Single Sink 4-in Centerset Faucet Mount Bathroom Vanity Top Verified Purchaser

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Would Recommend

I bought this about a month ago I got a great deal on it and I’m glad I did buy it it works great!

DjhurtSeptember 30, 2026
Verified Purchaser

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Response from Project Source Customer Care

We are thrilled to know you are happy with your choice of Project Source! Thank you so much for choosing us to be a part of your space!

Project Source Customer CareSeptember 30, 2026

ProjectSourcebyRSI

Looks Amazing

Would Recommend

We updated the bathroom with this beautiful countertop sink. It looks great. So happy with the color and quality. Very easy to install.

SimoneSeptember 18, 2026
From 49-in White Cultured Marble Single Sink 4-in Centerset Faucet Mount Bathroom Vanity Top Verified Purchaser

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/0f137359-dc17-5d37-b8db-2b9b1ac2b27d

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Response from Project Source Customer Care

We are so glad to know this vanity was just what your space needed! We hope your new Project Source cabinet helped you achieve your design vision and... Read More

Project Source Customer CareSeptember 21, 2026

ProjectSourcebyRSI

Beautiful Sink Top

Would Recommend

Very excited with my new sink top - we are remodeling the master bath

Master BathAugust 31, 2026
From 37-in White Cultured Marble Single Sink 4-in Centerset Faucet Mount Bathroom Vanity Top Verified Purchaser

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Response from Project Source Customer Care

We are so glad to know you are excited! Thank you so much for choosing Project Source to help with your bathroom space! We hope your new top helps ma... Read More

Project Source Customer CareSeptember 1, 2026

ProjectSourcebyRSI

Vanity sink install

Would Recommend

Worked perfectly

JoeAugust 28, 2026
From 25-in White Cultured Marble Single Sink 4-in Centerset Faucet Mount Bathroom Vanity Top

Was this Review Helpful ?

Response from Project Source Customer Care

We are glad to know this went well for you, Joe! Thank you so much for choosing Project Source for your bathroom project, and we hope your new vanity... Read More

Project Source Customer CareAugust 28, 2026

ProjectSourcebyRSI

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Project Source 31-in White Cultured Marble Single Sink 4-in Centerset Faucet Mount Bathroom Vanity Top

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