Karran Undermount 31.75-in x 19.25-in Quartz Single bowl Kitchen Sink

Name: Karran Undermount 31.75-in x 19.25-in Quartz Single bowl Kitchen Sink
Brand: Karran
SKU: 1000549659
Price: 299.95 USD
Availability: InStock
Rating: 4.8 (172 reviews)

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4.8

172

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Product Dimensions

31.75 in

Length

19.25 in

Width

9 in

Depth of Bowl 1

$284.95 When you choose 5% savings on eligible purchases every day.

$50/mo Suggested payments with 6 month special financing.

Manufacturer Color/Finish: Concrete

Pickup

Unavailable

Shipping

Thu, Sep 17

42 available

Delivery

Sat, Sep 19

42 available

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Maximum Qty of 99

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The QU-670 with its spacious single extra-large bowl, this design is both practical and elegant. It is manufactured from an extremely durable Karran quartz composite material that will provide years of trouble-free use. This undermount design is available in a choice of 6 elegant color options to compliment any decor. With its convenient drain on the side that can be reversible left/right depending on your set up. Let this quartz undermount single bowl kitchen sink ease the day-to-day kitchen tasks.

Designed for installation into granite, quartz and solid surface countertops
Made from 80% natural quartz crystals and pure acrylic resin
Heat resistant up to 535°F and can withstand rapid temperature changes from cold and hot water
Overall sink length (side to side): 31-3/4 in
Overall sink width (front to back): 19-1/4 in
Inside bowl dimensions: 29 in x 16-3/8 in x 9 in
Minimum cabinet size required: 36 in sink base cabinet
Drain opening size: 3-1/2 in
All dimensions are accurate to within 1/4", capturing the precision and bold styling of the QU-670 quartz sink

General
Style	Traditional	Sink Shape	Rectangular
Manufacturer Color/Finish	Concrete	Sink Mount Type	Undermount
Color/Finish Family	Gray	Heat Resistance in Degrees F	535
Number of Faucet Holes	None (customizable)	Items Required for Assembly	High quality silicone adhesive caulk
Drain Location	Offset	Fixture Color Family	Gray
Material	Quartz

Dimensions
Width (Inches)	19.25	Cutout Length (Inches)	28.5
Depth of Bowl 1 (Inches)	9	Cutout Width (Inches)	16
Depth of Bowl 3 (Inches)	0	Length (Inches)	31.75
Depth of Bowl 2 (Inches)	0	Weight (lbs.)	33
Drain Connection Diameter (Inches)	0	Minimum Cabinet Size	36-in

Features
Knockout Holes Included	No	Noise Insulation	Yes
Trough	No	Sink Grid Included	No
Supply Lines Included	No	Drainboard Included	No
Corner Installation	No	Lowe's Exclusive	No
Mounting Hardware Included	Yes	Workstation	No
Basin Split	Single basin	Bowl Configuration	Single bowl
Drain Included	No	Strainer Included	No
All-in-One Kit	No	Faucet Included	No
Commercial/Residential	Residential	Garbage Disposal Included	No

Compatibility
Compatible with Garbage Disposals	Yes

Certifications
CA Residents: Prop 65 Warning(s)	No	ADA Compliant	No
Safety Listing	IAPMO safety listing

Warranty
Warranty	Limited lifetime

Miscellaneous
UNSPSC	30181500

Check out the Best Selling Kitchen Sinks on Lowes.com

Review

4.8 out of 5

172 Reviews

2 Star

97% Recommend this product

Ratings may include incentivized customer reviews.

Read All Reviews

+ 85

What Customers Are Saying

Customers overwhelmingly praise the sink for its stunning black and gray finishes that elevate kitchen aesthetics, exceptional durability, and effortless maintenance. The single-bowl offset drain design maximizes storage and accommodates large items, while the matte textured surface resists scratches and stains remarkably well. Many note the material hides minor imperfections better than traditional options, and cleaning requires minimal effort. Reviewers consistently report five-plus years of reliable performance with no fading or staining. A very small number mention minor issues like occasional hard water spots, but nearly all customers consider this a transformative upgrade that delivers both style and lasting functionality.

Customer review summary generated by AI, including incentivized reviews.

172 Customer Reviews

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Elegant

Would Recommend

I ordered the black quartz undermount sink. I absolutely love it. It's very durable and looks elegant with the black faucet I also purchased.

dmcmSeptember 5, 2026
From Undermount 31.625-in x 19.125-in Quartz Single bowl Kitchen Sink Verified Purchaser

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Great sink

Would Recommend

A great sink - beautiful and functional. Won't scratch or dent like stainless steel or pit like porcelain.

JohnTSeptember 1, 2026

From karran.com

Too early to tell

Would Recommend

I just received the sink yesterday so its a little early to be reviewing ot si soon. Love the color (concrete) and it looks like it will work well once its installed.

RandyAugust 30, 2026

From karran.com

12 Questions

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COMPARE PRODUCTS

		Name	Current Item KarranUndermount 31.75-in x 19.25-in Quartz Single bowl Kitchen Sink
		Ratings	169
		Material	Quartz
		Sink Mount Type	Undermount
		Width (Inches)	19.25
KarranUndermount 32.25-in x 19.25-in Quartz Single bowl Kitchen Sink	KarranUndermount 31.75-in x 19.25-in Quartz Single bowl Kitchen Sink	KarranUndermount 32-in x 19.5-in Quartz Single bowl Kitchen Sink	KarranUndermount 32-in x 19.5-in Quartz Single bowl Kitchen Sink	KarranUndermount 32-in x 19.5-in Quartz Single bowl Kitchen Sink	KarranUndermount 32-in x 19.5-in Quartz Single bowl Kitchen Sink	KarranUndermount 32.5-in x 19.5-in Quartz Single bowl Kitchen Sink	KarranUndermount 32-in x 19.5-in Quartz Single bowl Kitchen Sink	KarranUndermount 32-in x 19.5-in Quartz Double offset bowl Kitchen Sink
113	168	123	123	123	123	125	123	176
Quartz	Quartz	Quartz	Quartz	Quartz	Quartz	Quartz	Quartz	Quartz
Undermount	Undermount	Undermount	Undermount	Undermount	Undermount	Undermount	Undermount	Undermount
19.25	19.25	19.5	19.5	19.5	19.5	19.5	19.5	19.5

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