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Internet # 309127023

Model # QA-740-BL

Farmhouse/Apron-Front Quartz Composite 34 in. Single Bowl Kitchen Sink in Black

$549.95
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  • 34 in. x 21.25 in. x 9 in. min. cabinet size required is 36 in.
  • Durable: impact, scratch and heat resistant up to 535°F
  • Unsure about color? Request a FREE chip on Karran.com Support
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Pay $499.95 after $50 OFF your total qualifying purchase upon opening a new card. 
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Product Details

About This Product

This classic apron front design with its deep 9-1/4 in. apron blends function and form beautifully, and will look stunning in your kitchen. It is manufactured from an extremely durable quartz composite material that will provide years of trouble-free use. This elegant design is available in a choice of 6 rich colors to compliment any decor. Features & Benefits: Designed for installation under granite, quartz and solid surface countertops. Made from 80% natural quartz crystals and pure acrylic resin. Heat safe up to 535°F and can withstand rapid changes in temperature from hot and cold water. Durable quartz material is completely non-porous, preventing the spread of germs and bacteria. Smooth, non-porous surface means food residue won't stick or stain the sinks surface.

Highlights

  • Extremely stain, scratch, abrasion and impact resistant
  • Quartz material absorbs vibration and minimizes noise when in use
  • Natural quartz and pure acrylic resins provide deep and rich colors with a choice of 6 to choose from, and UV stabilization to keep those colors looking like new for decades
  • Daily cleaning is simple with just a cloth and soapy water
  • Rear drain location leaves more room in your cabinet below and a 9" deep bowl provides plenty of room to accommodate all your cookware
  • Series: Quartz QA Series
  • Bowl configuration: Large single bowl
  • Overall sink length (side to side): 34"
  • Overall sink width (front to back): 21-1/4 in.
  • Inside bowl dimensions: 31 in. x 16-3/4 in. x 9 in.
  • Apron depth: 9-1/4 in.
  • Minimum cabinet size required: 36 in. farmhouse sink base cabinet
  • Drain opening size: 3-1/2 in.
  • Compatible with most garbage disposals
  • Approximate weight: 46lbs
  • Certifications: cUPC certified
  • Accessories included with sink: None
  • From an award-winning kitchen and bath brand, engineered for professional performance you can trust in your home
  • Return Policy

Product Information

Internet # 309127023

Model # QA-740-BL

Specifications

Dimensions

Sink Front to Back Width (in.)

21.25 in

Sink Left to Right Length (in.)

34 in

Sink Top to Bottom Depth (in.)

9 in

Details

Bowl Split

No Split

Bundle Type

Sink Only

Color Family

Black

Color/Finish

Black

Drain Location

Rear

Faucet Included

Without Faucet

Features

Heat Resistant, Sound Dampening

Included

Sink Only

Kitchen Product Type

Kitchen Sink

Minimum Cabinet Size (in.)

36

Mount Type

Farmhouse/Apron-Front

Number of Bowls

Single Bowl

Number of Faucet Holes

0

Returnable

90-Day

Sink Gauge

No Gauge Applicable

Sink Material

Quartz

Sink Shape

Rectangular

Warranty / Certifications

Certifications and Listings

IAPMO Certified

Manufacturer Warranty

Limited Lifetime Warranty

Questions & Answers

Will this sink work with a 36” farmhouse cabinet?
ByOct 28, 2025
1 Answer | 
Answer This Question

A minimum of 34” of space is needed for the installation of this apron sink. If you need further assistance, please contact Karran customer service at 866–452–7726 or via email at info@karran.com. Thank you.

By|Jan 6, 2026


    Which color is a lighter grey between the concrete and the grey color?
    ByJan 13, 2024
    1 Answer | 
    Answer This Question

    The grey finish is lighter in color compared to the concrete. If you prefer, we can send out a complementary sample chip of both colors for you to view. Please send your contact information to info@Karran.com and you will receive the samples within a few days. If you need further assistance, please contact customer service at 866-452-7726. Thank you

    By|Jan 6, 2026


      What garbage disposal is compatible with this sink?
      ByDec 20, 2023
      1 Answer | 
      Answer This Question

      Any industry size garbage is compatible with this sink. If you need further assistance, please contact customer service at 866-452-7726 or via email at info@Karran.com. Thank you.

      By|Jan 6, 2026


        Can I put this sink into a new countertop that will be laminate, rather than granite or corian?
        ByApr 5, 2023
        1 Answer | 
        Answer This Question

        Thank you for contacting Karran. This sink cannot be used in a laminate top. Please contact Karran customer service at 866- 452-7726 or via email at info@karran.com if we can be of further assistance.

        By|Jan 6, 2026


          what size sink grid will fit this sink
          ByJan 23, 2023
          1 Answer | 
          Answer This Question

          Thank you for contacting Karran. The product code for this grid is GR-6001. If you need further assistance please contact customer service at 866-452-7726.

          By|Jan 6, 2026


            Can this sink be cleaned with bleach?
            BySep 16, 2022
            1 Answer | 
            Answer This Question

            Thank you for contacting Karran. Bleach can be used as long as it is diluted with water. Please see the attached care and maintenance guide. https://karran.com/quartz-granite-sinks-care-and-maintenance Please contact customer service at 866-452-7726 if you need further assistance.

            By|Jan 6, 2026


              Can this sink be retrofitted into an existing sink cabinet?
              BySep 4, 2022
              1 Answer | 
              Answer This Question

              Thank you for contacting Karran. This sink cannot be retrofitted. Our QAR-740 is a farmhouse sink that can be retrofitted. Please contact customer service at 866-452-7726 if we can be of further assistance.

              By|Jan 6, 2026


                is the black a matte finish or flat color finish
                ByAug 16, 2022
                2 Answers | 
                Answer This Question

                Thank you for contacting Karran. We considered the finish a matte black. We would be happy to send you out a complementary sample chip. Please email or contact us with your information to info@karran.com or at 866-452-7726.

                By|Jan 6, 2026

                  Hello there, The color for this sink is closer to a flat black color rather than a matte black. Thank you for your inquiry.

                  By|Aug 16, 2022


                    Viewing 1-8 of 30

                    Customer Reviews

                    4.7 out of 5

                    • 4.7 out of 239 reviews
                    • 96% recommend this product
                    Filter by:
                    Showing 1-10 of 239 reviews
                    Farmhouse Kitchen Sink
                    We purchased this Farmhouse Kitchen Sink in a gray and it looks stunning in our new kitchen.
                    by
                    • Verified Purchase
                    • Recommended
                    It’s beautiful
                    Great sink….sturdy
                    by
                    • Verified Purchase
                    • Recommended
                    Stains and Scratched
                    After one year, the sink is stained and scratched, despite using the Karran Luster Pro oil to treat it regularly.
                    by
                    Response from KarranOct 23, 2025
                    We’re sorry to hear about your experience. Quartz sinks are designed to be highly resistant to scratches, so in many cases what appear to be scratches may actually be surface scuffs that can be removed with a magic eraser or non-abrasive pad. Regarding stains, white sinks can be more prone to discoloration if items like coffee, tomato sauce, or tea are left in contact for extended periods. We recommend cleaning regularly with a mixture of mild soapy water and white vinegar, which often helps lift stains and restore the original finish. If the marks persist, please reach out to us directly at info@karran.com— we’d be happy to walk you through a few additional care steps. We also recommend using a bottom grid (model GR-6002) to help protect the surface from future scratches.
                      Perfect!
                      The perfect sink! We were shown these sinks by our quartz supplier and I'm so thankful. It's perfect and better then what I imagined in my new gone
                      by
                      • Verified Purchase
                      • Recommended
                      Best sink I’ve ever used.
                      This is without a doubt the best sink I’ve ever used. I bought the work station sink and I love the drying rack, the colander and cutting board that all fit in a grove on the sink. It’s easy to clean, big enough to wash large platters and pots and pans and sturdy and pretty much maintenance free. Any marls can be buffed away with a Magic Sponge.
                      by
                      • Verified Purchase
                      • Recommended
                      The product description states a 6 inch apron. This is wrong. It is a 9 inch apron. This caused issues with my contractor, due to i did not have the time to order something else. I am disappointed. They had to cut my cabinet doors to make it work.
                      by
                      Response from Glacier BayJan 6, 2026
                      We apologize for any confusion regarding the apron size of our Farmhouse/Apron-Front Quartz Composite 34 in. Single Bowl Kitchen Sink in White. It appears there may have been a misunderstanding, as our product description accurately states a 9-1/4 in apron for this particular model. Our Retrofit model is the one that you needed QAR-740. Please contact us at info@karran.com if you still need help with anything else.

                      Thank you karran
                      • Verified Purchase
                      My fav part of the kitchen :)
                      Best part of my kitchen renovation! I got the matte black farmhouse sink, it has a beautiful apron on it. We get all rave reviews with the new addition!
                      by
                      • Verified Purchase
                      • Recommended
                      Kitchen upgrade
                      Sink fit exactly as expected. Major install was cutting the cabinet front, but fit well by following instructions
                      by
                      • Verified Purchase
                      • Recommended
                      Love my farmhouse sink
                      I love the sink the only thing I’m concerned about is scratching it. I did get the rack for the bottom of the sunk and the oil to rub on it. I had just hoped it was more of a glaze on it like porcelain. I have received many compliments on it.
                      by
                      • Verified Purchase
                      • Recommended
                      Transformative Change To Our Kitchen
                      The sink was part of a total countertop package from an installer. We liked the look of the farmhouse style sink, but wasn't certain we could affordably "fit" the sink into our design. The installer offered this sink, which is a bit shallower than some farmhouse style sinks, and it fits perfectly without having to demo the cabinetry. It's a beautiful sink, and just what we wanted. It is white, and so far is easy to maintain and clean, but we haven't had it for very long, so I can't speak to long term maintenance, but so far, we absolutely love it!
                      by
                      • Verified Purchase
                      • Recommended
                      Showing 1-10 of 239 reviews

                      Compare Key Features

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                      Product Snapshot

                      Ideal for homeowners looking for a durable and stylish sink, making kitchen cleanup easier. This black quartz composite sink offers sound dampening and heat resistance for long-lasting performance.
                      Ideal for homeowners looking for a durable and stylish sink, making kitchen upgrades a breeze with its easy installation.
                      Ideal for homeowners looking for a durable and stylish sink, making kitchen cleanup easier. This farmhouse sink boasts a heat-resistant quartz composite construction and spacious double bowls.
                      Ideal for homeowners looking for a durable and stylish sink, making kitchen cleanup easier. This retrofit farmhouse sink boasts heat resistance and a sound-dampening design.

                      Bowl Depth

                      9 in.
                      9 in.
                      9 in.
                      9 in.

                      Dimensions

                      L 34 in. x W 21.25 in. x H 9 in.
                      L 34 in. x W 21.25 in. x H 9 in.
                      L 34 in. x W 21.25 in. x D 9 in.
                      L 34 in. x W 21.25 in. x D 9 in.

                      Number of Bowls

                      Single Bowl
                      Single Bowl
                      Double Bowl
                      Double Bowl

                      Bowl Width

                      16.75 in.
                      31 in.
                      14.75 in.
                      14.75 in.

                      Drainage Design