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Description
Karran 34" Undermount Quartz Composite Kitchen Sink with Accessories, 60/40 Double Bowl, Grey, QU-721-GR-PK1Karran 34" Undermount Quartz Composite Kitchen Sink with Accessories, 60 40 Double Bowl, Grey, QU 721 GR PK1 Karran USA is one of the leading manufacturers of sinks and faucets for the kitchen and bathroom. Karran manufactures sinks in a variety of durable materials including stainless steel, acrylic, quartz composite, and vitreous china. The company was founded in the late 1990s in Vincennes, Indiana, USA, and has been a symbol for quality and
Karran 34" Undermount Quartz Composite Kitchen Sink with Accessories, 60/40 Double Bowl, Grey, QU-721-GR-PK1
Karran USA is one of the leading manufacturers of sinks and faucets for the kitchen and bathroom. Karran manufactures sinks in a variety of durable materials including stainless steel, acrylic, quartz composite, and vitreous china. The company was founded in the late 1990s in Vincennes, Indiana, USA, and has been a symbol for quality and reliability ever since.
Its stylish curved rear bowl walls and gently curved side walls gives this large/small bowl design a unique and appealing aesthetic. Its quartz composite material gives it outstanding durability and will provide years of trouble-free use. This undermount design is available in a selection of 6 elegant color choices to compliment any decor. Karran Quartz sinks are a great compliment to your home improvement project.
Available In:
Please see our color disclaimer.
Features
- Designed for installation into granite, quartz and solid surface countertops
- Made from 80% natural quartz crystals and pure acrylic resin
- Heat resistant up to 535F and can withstand rapid temperature changes from cold and hot water
- Durable quartz material is non-porous, preventing the spread of germs and bacteria
- 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
- Rear drain locations provide more storage room in your cabinet below and 9" deep bowls provide plenty of room to accommodate all your cookware
- Series: Quartz QU Series
- Bowl configuration: Large/small bowl
- Overall sink length (side to side): 33-1/2"
- Overall sink width (front to back): 20-5/8"
- Inside bowl dimensions: Left - 18" x 18" x 9"
- Inside bowl dimensions: Right - 11-1/8" x 16-1/2" x 9"
- Minimum cabinet size required: 36" sink base cabinet
- Drain opening size: 3-1/2"
- Compatible with most garbage disposals
- Approximate weight: 36lbs
- Certifications: cUPC certified
- Accessories included with sink: 2x Bottom Grids, 2x Basket Strainers, 1x Luster Pro Oil, Template and clips
- IAPMO Certified
Related Products
Faucet(s):
- KKF210BG, KKF210C, KKF210GG, KKF210MB, KKF210SS, KKF220C, KKF220MB, KKF220SS, KKF230C, KKF230MB, KKF230SS, KKF240C, KKF240SS, KKF250C, KKF250SS, KKF260C, KKF260SS
Details
| Bowl Split: | 60/40 |
|---|---|
| Box Height: | 15" |
| Box Length: | 37" |
| Box Weight: | 53 lb(s) |
| Box Width: | 26" |
| Certification: | IAPMO Certified |
| Color: | Grey |
| Country of Origin: | India |
| Drain Placement: | Rear Center |
| Drain Size: | 3.5" |
| Finish: | Matte |
| Inner Depth: | 9" |
| Installation Type: | Undermount |
| Installation Hardware Included?: | Yes |
| Item Height: | 9" |
| Item Length (Front to Back): | 20.625" |
| Item Weight: | 36 lb(s) |
| Item Width (Side to Side): | 33.50" |
| Material: | Quartz Composite |
| Minimum Cabinet Size: | 36" |
| Number of Bowls: | 2 |
| Number of Faucet Holes: | 0 |
| Overall Dimensions: | 33.50" x 20.625" x 9" |
| Shape: | Rectangular |
| SKU: | QU-721-GR-PK1 |
| Ship Method: | FedEx Ground |
Warranty
25 Year Limited Warranty
Karran Warranty Details (PDF)
Installation Instructions
Installation Instructions (PDF)
Product Care
Karran Product Care (PDF)
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 4
Noticeable Support for Calm and Clarity
Size: 90 Count (Pack of 1), Size: 90 Count (Pack of 1)
This magnesium L‑threonate supplement has been a great addition to my daily routine. The capsules are easy to take, gentle on my stomach, and I’ve noticed a clearer, more focused feeling throughout the day. It also brings a nice sense of calm in the evenings without making me groggy. The formula feels clean and well made, and it fits effortlessly into a wellness routine. If you’re looking for a reliable magnesium option that supports relaxation and mental clarity, this one is a solid choice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 29, 2026
★★★★★ 5
Highly recommend for sleep, mood, mental health
Size: 90 Count (Pack of 1)
I recently re-discovered this supplement, and I'm buying extras left and right and recommending to everyone I talk to. I've been working on increasing my HRV and supporting my nervous system, and the L-threonate is a rockstar for that. I was taking glycinate for a few months, and I found an old bottle of this one and added just 2 capsules, and the effect on my sleep was immediate. Way better than melatonin. My Fitbit is tracking much lower restlessness and more deep sleep, and I actually wake up feeling refreshed ?? and before my alarm, even! I'm noticing lower anxiety and an overall better mood, and it's only been 4 days. This bottle definitely holds its value, and the price is good, especially if I can get these benefits with just the 2 caps and not 3.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
★★★★★ 5
Big winner for helping BETTER SLEEP
Size: 90 Count (Pack of 1)
Life Extension is top of the line on most things they have. also pricier than most, but I buy three items for them regularly for many years. This Neuro-Mag with L-Threonate is excellent for boosting better sleep. This is a newer addition to their line. I also suggest trying their Mult-B complex and their B-12 elite (sublingual) On nearly all items, their quality control is near THE TOP of all suppliers. They also have supported vitamin and supplement research on my items over the last 40 years
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
★★★★★ 5
Energy and Clear Thinking
Size: 90 Count (Pack of 1)
Great product. I use various forms of magnesium for different things . This form was suggested for clearer thinking and energy, and it delivers! I use it in the AM and it helps keep me energized I do think it varies by person how it affects you though as some folks get drowsy w/ it. Just a heads up to test on a weekend perhaps. I won't be without it now!
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Reviewed in the United States on April 5, 2026
★★★★★ 3
Capsules Are Too Large and Have a Strong Plastic Smell
Size: 90 Count (Pack of 1)
I’ve purchased this product twice, but the capsule design is a big downside for me.
The capsules are very large and difficult to swallow. On top of that, there is a noticeable plastic-like smell from the capsules, which is quite distracting and unpleasant. It makes taking them every day uncomfortable.
The product itself may work as intended, but the capsule size and odor seriously affect the overall experience. I wish they would improve the capsule material or offer a smaller or odor-free option.
If you are sensitive to smells or have trouble swallowing large capsules, keep this in mind before buying.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026
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