Houzer M-300U Quartztone 31" G...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$601.49
$390.96

Houzer M-300U Quartztone 31" Granite Composite Undermount 50/50 Double Bowl Kitchen Sink

(No reviews yet) Write a Review

Model: M-300U-CLOUD
Selected Finish is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$601.49
$390.96
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks

Houzer M-300U Quartztone 31" Granite Composite Undermount 50/50 Double Bowl Kitchen Sink

Houzer M-300U Granite Undermount 50/50 Double Bowl Sink is engineered with a highly functional Design to accommodate various culinary tasks effortlessly. Crafted from 80% fine quartz sand, the Quartztone granite material offers exceptional durability, being three times harder than natural granite while maintaining a silky touch and easy maintenance. Its non-porous surface ensures hassle-free cleaning and prevents stains, while its high resistance to thermal shock makes it suitable for everyday use. Additionally, the material is UV stable and heat resistant up to 500 degrees F, guarding against fading, chips and scratches. The sink comes complete with instructions, mounting clips and a template for convenient installation. Compliant with ASME 100.19.3-2000 and UPC standards, Houzer M-300U Granite Undermount 50/50 Double Bowl Sink is the epitome of reliability and functionality for your kitchen.

  • PRODUCT DIMENSIONS - Overall - 31-1/8" L x 18-1/2" W x 9-1/2" D. Bowls - 14-1/2" L x 16-1/2" W x 9-1/2" D.
  • MINIMUM CABINET SIZE - 33"
  • OPTIONAL ACCESSORIES - Basket Strainer (190-9180), Bottom Grid (629807) and Cutting Board (CB-4100)
  • QUARTZTONE GRANITE - Made with Quartztone granite, this sink is extremely durable, featuring a composition of 80% quartz for long-lasting performance
  • VERSATILE & EASY INSTALLATION - This sink offers enhanced flexibility for various faucet setups and accessories, allowing you to customize your kitchen or bar area to meet your specific needs. Includes mounting hardware and installation instructions.
  • HOUZER WARRANTY - Comes with a limited lifetime warranty
  • EASY TO CLEAN - Smooth surface and rounded corners with a small radius for effortless cleaning
  • HEAT RESISTANT - HEAT RESISTANT up to 500 Degrees Fahrenheit, the sink safeguards against fading, chips, and scratches, maintaining its allure for years to come.
  • EYE CATCHING - Add a pop of color to your home with this UV-stable, food-safe sink with maximum color intensity
  • CLASSIC DOUBLE BOWL DESIGN - Offers plenty of room for all your kitchen tasks; prep in one sink and stack dirty dishes in the other


Houzer Products Care and Maintenance
Houzer's Manufacturer Product Warranty Policy

Manufacturer Resources

Product Specs

Basin Split:
50/50
Collection Name:
Quartztone
Drain Location:
Rear
Drain Size:
3-1/2"
External Dimensions (L x W x H):
31-1/8" x 18-1/2" x 9-1/2"
Installation Location:
Kitchen
Installation Type:
Undermount
Left Inner Bowl Dimensions - L x W x H (Decimal):
14.5" x 16.5" x 9.5"
Left Inner Bowl Dimensions - L x W x H (Fraction):
14-1/2" x 16-1/2" x 9-1/2"
Material Type:
Granite Composite
Min Cabinet Size:
36"
Mounting Hardware:
Yes
Number of Basins:
2
Product Group:
Kitchen
Product Subgroup:
Sink
Product Type:
Undermount
Right Inner Bowl Dimensions - L x W x H(Fraction):
14-1/2" x 16-1/2" x 9-1/2"
Right Inner Bowl Dimensions L x W x H (Decimal):
14.5" x 16.5" x 9.5"
Template Included:
Yes
Warranty:
Limited Lifetime Warranty
Product Shape:
Rectangle
Product Style:
Traditional
Department:
Plumbing

Houzer M-300U-CLOUD – Frequently Asked Questions

1) Are both bowls on the Houzer M-300U the same size?
Yes, it is a true 50/50 double bowl. Left and right basins both measure 14-1/2 x 16-1/2 x 9-1/2 inches, so you get equal prep and stacking space on each side rather than a large/small split.
2) Will my existing kitchen drain and disposal fit this Houzer granite sink?
The drain openings are the standard 3-1/2 inch kitchen size, which is what basket strainers and garbage disposal flanges are built for. The drains sit at the rear of each bowl, so the tailpieces come down behind the cabinet's usable storage and the trap arm runs closer to the back wall than it would on a center-drain sink. Worth checking your existing trap height before you set the sink, since rear drains often let you keep more shelf space but can change where the trap lands.
3) Can the Houzer M-300U be installed on a laminate countertop?
No. The M-300U is an undermount sink, so it has to hang below a solid surface top that can be polished at the cutout edge and carry the sink's weight, such as granite, quartz, or solid surface. Laminate has an exposed particleboard core at the cutout and is not suitable for undermounting. If the kitchen has laminate tops, you need a drop-in or topmount sink instead.
4) Does the Houzer M-300U come with mounting hardware, or do I have to buy clips separately?
Mounting hardware is in the box. The sink ships with mounting clips, a cutting template, and installation instructions. You supply the silicone or adhesive the fabricator prefers and the drain assembly, which is not part of the sink.
5) What do I need to order along with the M-300U to finish the job?
Plan on a basket strainer, since the drain assembly is not supplied with the sink. Houzer lists the 190-9180 basket strainer, the 629807 bottom grid to protect the basin floor, and the CB-4100 cutting board as the accessories made for this sink. The drain openings are 3-1/2 inch, so a standard strainer or disposal flange lands correctly.
6) Is granite composite tough enough for a rental or multi-family kitchen?
Quartztone is a granite composite made with 80 percent fine quartz sand, and Houzer rates the material as three times harder than natural granite, non-porous so it resists staining, and heat resistant to 500 degrees F. The color runs through the material and is UV stable, so it does not fade or show wear at the rim the way a coated finish does. For turnover units where tenants set hot pans down and use abrasive cleaners, that combination holds up better than a light-gauge stainless bowl.
7) Does the Houzer M-300U meet plumbing code for a commercial or permitted job?
The M-300U is compliant with ASME 100.19.3-2000 and UPC standards, which is what an inspector or spec writer typically wants to see on a kitchen sink submittal.
8) What colors does the Houzer M-300U Quartztone sink come in?
Five matte colors: Cloud, Sand, Mocha, Midnite, and Slate. All five are the same 31-1/8 inch 50/50 double bowl body, so the color choice does not change the cutout, the bowl sizes, or the cabinet requirement. If you are standardizing across several units, ordering one color across the building keeps replacements simple, since these are through-color composite and cannot be refinished to match later.
9) Are installation instructions available for the Houzer granite undermount sinks?
Yes, Houzer publishes a granite sink installation instruction sheet that covers the undermount mounting clip method, and a printed copy ships in the carton along with the cutting template and clips.
How fast can I get the Houzer M-300U-CLOUD delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Houzer M-300U-CLOUD come with a warranty?
Absolutely. The Houzer M-300U-CLOUD is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Houzer M-300U-CLOUD?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Houzer M-300U-CLOUD from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.