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Internet #305312278

Model #QU-670-CN

Undermount Quartz Composite 32 in. Single Bowl Kitchen Sink in Concrete

  • 31.75in. x 19.25in. x9in. Minimum cabinet size required is 36 in.
  • Durable: impact, scratch and heat resistant up to 535°F
  • Low maintenance: smooth surface that’s easy to clean and maintain
  • See More Details

Frequently Bought Together


Product Overview

With its spacious extra-large bowl, this design is both practical and elegant. It is manufactured from an extremely durable 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 décor. Features & Benefits: Designed for installation under solid surface, quartz and granite countertops. Made from 80% natural quartz crystals and pure acrylic resin. Heat resistant up to 535°F and can withstand rapid temperature changes from hot and cold water. Karran durable quartz composite material is non-porous, preventing the spread of bacteria and germs.
  • Smooth, non-porous material means food residue won't stick or stain the sinks surface
  • Extremely stain, scratch, abrasion and impact resistant
  • Quartz material absorbs vibration and minimizes noise when in use
  • Natural quartz combined with pure acrylic resins provides deep, rich colors with a choice of 6 to choose from, and UV stabilization to keep those colors looking like new for years
  • Regular cleaning is simple with just a cloth and soapy water
  • Side drain location leaves more storage room in your cabinet below and the 9” deep bowl provides plenty of room to accommodate all your cookware
  • Specifications:
  • Series: Karran Quartz QU Series
  • Bowl configuration: Large single bowl
  • Overall sink length (side to side): 31-3/4”
  • Overall sink width (front to back): 19-3/4
  • Inside bowl dimensions: 29” x 16-3/8” x 9”
  • Minimum cabinet size required: 36" sink base cabinet
  • Drain opening size: 3-1/2”
  • Compatible with most garbage disposals
  • Approximate Weight: 31lbs
  • Certifications: cUPC certified
  • Accessories included with sink: Template and clips

Info & Guides

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Actual Left to Right Length (In.)
Bowl Below Counter Depth (in.)
Bowl Front to Back Width (in.)
Bowl Left to Right Length (in.)
Bowl Top to Bottom Depth (in.)
Cut-Out Below Counter Depth (in.)
Cut-Out Depth (in.)
Cut-Out Width (in.)
Kitchen Sink Front to Back Width (In.)


Bundle Type
Sink Only
Color Family
Drain Location
Heat Resistant
Sink Only
Kitchen Product Type
Kitchen Sink
Minimum Cabinet Size (in.)
Mount Type
Number of Bowls
Single Bowl
Number of Faucet Holes
Product Weight (lb.)
42 lb
Sink Finish Type
Sink Material
Sink Shape

Warranty / Certifications

Certifications and Listings
IAPMO Certified
Manufacturer Warranty
25 year warranty

Questions & Answers


Difference in color between concrete and grey

Asked by Di February 9, 2021

Concrete is more of a taupe color. Please email us at info@karran.com with your address and we are happy to send you complimentary color chips of these three colors. This is the best way to truly see the colors and make an informed decision.

Is the bottom sloped to aid with drainage?

Asked by mag December 30, 2020

The bottom is sloped towards the drain to aid in proper drainage.

Does this sink include all the materials needed for mounting and installation?

Asked by Josie November 10, 2020

This is just the sink, along with a template to cut the countertop and clips to install the sink. You will need to purchase a good quality silicone to seal the sink to the underside of the countertop. You will also need to purchase a garbage disposal or basket strainer depending on what you prefer.

Can this sink be mounted with the drain on the left?

Asked by renogal October 13, 2020

Yes it is reversable

Does it come with the garbage disposal drain?

Asked by shyshay August 2, 2020

The drain hole but not the actual disposal.

Is the sink concrete or concrete color?

Asked by shyshay August 2, 2020

Concrete color. It's made of quartz.

Can you install this with laminate countertop?

Asked by El March 9, 2020

This sink is designed to undermount in stone and solid surface countertops. It will not work with laminate. We do have models called our Q Series that will undermount in laminate. To order one of these sinks in a laminate countertop, please visit your local store and talk to a kitchen designer. They can assist you.

What county are Karan composition sinks manufactured

Asked by Joe February 27, 2020

Karran quartz sinks are manufactured at our factory in India.

Does the drain basket come with this sink?

Asked by Mary September 8, 2019

There was no drain basket with the sink I purchased

Will this 32” undermount fit in a 33” sink base?

Asked by Pops January 6, 2019

Yes, this model will work with that size cabinet.

Undermount Quartz Composite 32 in. Single Bowl Kitchen Sink in Concrete - page 2

Customer Reviews

  • 4.6
    out of 44 reviews
  • 95% recommend this product
Filter by:
Showing 1-10 of 44 reviews
Great appearance and performance
We love it! It not only looks amazing, but it’s super easy to keep clean too!
by SueS
We went with a White speckled quartz countertop and this color grey looks wonderful with the whit...
We went with a White speckled quartz countertop and this color grey looks wonderful with the white counters. Not too dark, not too light. The installers did use a different mounting bracket then came with the sink that attaches to the cabinet wall vs in the counter, so consider that upgrade if you do-it-yourself
by MG
Great size!
Love this sink! So nice & big, makes it easy to clean larger pots & pans.
by Linda107
Lovely piece of art
My new sink is rich in color, durable and look absolutely stunning in our kitchen. I have so much too room to wash everything, without worrying about scratching or chipping the sink. Beautifully build and looks stunning with our new countertops.
by NewbyHomePro
I love this sink, the color goes really well with our new granite counters. We will also be addin...
I love this sink, the color goes really well with our new granite counters. We will also be adding a black subway tile backsplash which further complements the grey sink The sink is nice and deep, and easy to clean.
by NurseJen
3 people found this helpful
I love my new sink. I love the color, the size, and the simplicity of it's beauty. It is easy to ...
I love my new sink. I love the color, the size, and the simplicity of it's beauty. It is easy to clean, durable, etc etc. I love it!
by Oak
The sink is a nice big deep size and beautiful...
The sink is a nice big deep size and beautiful black color. I also bought the Luster Pro to keep the sink looking great. It works well.
Gray Karran Quartz Composite 33" Single Bowl Kitchen Sink
We Love our new Gray Karren Kitchen Sink, it looks so beautiful compared to our other sink. We got model # QT-670-GR from Home Depo and we Love it, if any one is looking for a sink that will make a statement in your kitchen, this will definitely do that. Thank you Karran for making just what we were looking for. Jeff & Brenda Petrilli
by Brenda
Love my Karran Quartz Sink
This sink (#QAR-750-BL-OK1) is exactly what I wanted and the size is perfect. I ordered online from Home Depot and the service & delivery date was spot on. I have had it for about a week now & I love how easy it is to clean. I love the deep bowls. Thanks Karran for a beautiful product.
by Tammy
Undermount quartz composite 32 in 60/40 double sink in concrete
Looks fantastic...We had gotten the under the counter sink mount and it looks great..
by chico
Showing 1-10 of 44 reviews