Kraus KBU23 Stainless Steel 31-1/2" Undermount 60/40 Double Bowl 16 Gauge Stainless Steel Kitchen Sink

- Item #: BCI1755676

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Stainless Steel
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Product Features:
  • Fully covered under Kraus' limited lifetime warranty
  • Constructed of 16 gauge premium grade T-304 stainless steel - guaranteed to never rust or corrode
  • Commercial-grade satin finish - highly scratch and stain resistant
  • Padded, Stone-Guard undercoat applied over rubber pads to reduce sink noise while in use
  • Double bowl (60/40 split) 31-1/2" sink with traditional rounded corners
  • Extra deep (9" depth) design is perfect for the semi-professional kitchen
  • Undermount installation; fits 36+" cabinets
  • Standard 3-1/2" drain opening compatible with most garbage disposal units (included InSinkErator)
Product Specifications:
  • Height: 9" ( measured from the bottom of sink to the top of the rim)
  • Overall Width: 20-1/2" (measured from the back outer rim to the front outer rim)
  • Overall Length: 31-1/2" (measured from the left outer rim to the right outer)
  • Basin Width (Left): 18-1/2" (measured from the back inner rim to the front inner rim)
  • Basin Width (Right): 16" (measured from the back inner rim to the front inner rim)
  • Basin Length (Left): 17-3/4" (measured from the left inner rim to the right inner rim)
  • Basin Length (Right): 10-1/2" (measured from the left inner rim to the right inner rim)
  • Basin Depth (Left): 9" (measured from the center of basin to the rim)
  • Basin Depth (Right): 7" (measured from the center of basin to the rim)
  • Installation Type: Undermount
  • Drain Outlet Connection: 3-1/2"
  • Minimum Base Cabinet Width: 36"
What's Included:
  • Kraus 16 gauge Stainless Steel sink
  • Stainless steel bottom dish grid (basin rack)
  • Stainless steel basket strainer (sink drain assembly)
  • Mounting and installation brackets
  • Sink cutout template (for countertop cut dimensions)
  • Dish towel with Kraus logo
  • Specification Sheet / Installation Guide
Advantages of Stainless Steel over Enameled Cast Iron or Fireclay:
  • Very durable; will never chip or crack
  • Dishes usually don't break when dropped during dish washing
  • Due to relative weights, stainless steel is generally much easier (and less expensive) to install
  • Nonporous; resists bacteria
  • Neutral color fits into almost any décor - matches stainless steel appliances
Product Technologies / Benefits:
  • Extra Thick, 16 Gauge Stainless Steel: Short of paying thousands of dollars, 16 gauge is as thick as sinks come (22% thicker than 18 gauge; 36% thicker than 20 gauge). Thicker steel means a stronger sink (hence the lifetime warranty) while also offering a richer and more robust appearance to the finish that is easily discernible from the white-washed, cheap look of thinner sinks.
  • Premium Grade T-304 Stainless Steel: There are two primary types of stainless steel in the market: T-409 and the higher quality T-304. The difference lies in chromium and nickel contents; T-409 with 11% and .5% respectively, T-304 with 18% and 10%. When added to steel, these two metals prevent oxidation and rust by neutralizing sodium chloride (salt) – a common element in everyday kitchens. While cheaper sinks use T-409, Kraus sinks boast T-304, further lending to the lifetime warranty.
  • Sound Insulated: Sound insulated steel is commonly only thought of in the automobile industry. There, auto manufacturers use spray-on “Stone Guard” insulation to provide for a quieter ride and protect the steel. Borrowing this technology and adding to it, Kraus sinks use Stone Guard insulation, sprayed over rubber sound dampening pads to create a noticeably lower-tone and overall quieter kitchen sink. It also protects your cabinet from underside condensation drips.
  • Included Dish Grids (Basin Racks) and Basket Strainers (Drains): It’s a wonder why dish grids aren’t included with all sinks; they serve a valuable role. Not only do they virtually eliminate scratches, they allow the sink to properly drain, preventing sink scum and protecting your cutlery. As with all Kraus sinks, this sink includes the stainless steel sink grids along with the basket strainers you’ll need for installation.
  • Heavily Certified: Kraus has gone to great lengths to be able to provide you, the homeowner, the rest-easy satisfaction knowing that your sink is certified and listed by all the major product testing boards in the U.S. and Canada. This means that this sink is deemed safe to use and that it meets all applicable building codes. Certifications and listings include: UPC, cUPC, CSA, IAPMO, ANSI and SCC.
Special Note:
  • This kitchen sink is available as a kitchen combo with a number of faucet choices. Like their sinks, Kraus kitchen faucets have gained tremendous momentum within the kitchen and bath industry and are highly regarded for their quality, durability, and meaningful innovation. If you are considering a purchase of this sink and also need a new faucet, we urge you to consider the kitchen combos; they truly are a deal. Under the header "We Also Recommend These Similiar Products" you will find 5 kitchen combos that include this sink. All kitchen combos that use this sink can be found by typing "KBU23 combos" into the search bar at the top right of this page.

Additional Kraus Links

Our SKU: Kraus KBU23

This product is listed under the following manufacturer number(s):

  • Kraus KBU23
    Stainless Steel

*Denotes a finish or option that has been discontinued

Product Videos

  • Real Review: Kraus Kitchen Sinks
    Brent Holland of reviews the many great features of Kraus kitchen sinks

Installation Resource Center

Whether you are installing the product yourself or hiring a professional, our installation Resource Center has everything you need to get your project done. Visit the Installation Resource Center to get started.

Kraus KBU23 Reviews

Rated 2 out of 5 by from It looked great, but pretty disappointed This sink SEEMS very high quality. It's nice and thick and will not bend when you push on it. It's insulated on the bottom so it's not noisy. It's beautiful and functional, but it SHOWS WATER SPOTS HORRIBLY. I'm talking you run water in one time and it looks AWFUL. It also scratches REALLY easily. I washed a few pans in the sink the day it was all hooked up and ready to go and immediately noticed scratches on the which point I started using the racks :( The DELTA faucet that we bought to go on it, it WONDERFUL and you can touch it with wet hands and it doesn't show water spots at all. They need to work on their finish and this would be a wonderful sink.
Date published: 2012-11-11
Rated 5 out of 5 by from Perfect size and so much more We remodeled our 1980's kitchen this spring and I needed to find an undermount sink that would fit into a small space. We kept the existing wood cabinets, they are built such that the doors below the sink area are set in about 2 inches which makes it hard to use a deep sink without impacting the cabinet. I almost gave up on getting a deep double sink as they were mostly too big for the space. Then I happened to see the Kraus brand sinks. Kraus has done a wonderful job in providing a selection of various sizes of sinks to satisfy tighter kitchens and tight budgets. We were so delighted with the quality of the product especially for the price. Solid construction, sound proof and all the extras that come with their sinks. You get a removable strainer, grids and even a towel. The drain hole setback is a another great feature for using the sinks. I will be recommending Kraus for a long time, excellent products!
Date published: 2012-06-14
Rated 5 out of 5 by from love this sink! Looked at Franke and Blanco sinks and when you add the drains, grids, etc., they are over $600. The Faucet Direct salesperson recommended Krauss and the gauge of the stainless steel is actually better than the other two manufactures AND it comes standard with grids, detergent dispenser and drain cover. Saved me bunches of money and looks just wonderful in our kitchen. I will recommend this sink to friends without hesitation!
Date published: 2012-05-17
Rated 5 out of 5 by from Excellent product! I am a General Contractor remodeling my own home this time around. With our goals set HIGH and our budget tight we had to really be wise when shopping. The kitchen sink is an extremely important part of your everyday life and its an area you definitely don't want to skimp on. This sink had everything we wanted and then some while being well within our budget. The 16 gauge stainless is of the highest quality and then they through in extras like strainers and sink grates. The packaging was stout, our sink came without a scratch in it. I am very satisfied with this product and intend to use these sinks for my upcoming remodels.
Date published: 2012-03-28
Rated 5 out of 5 by from Great Sink Bought this sink in April and it was installed on 5-29. The installer stated that he has had problems with foreign brand sinks, after he installed it (connected the drains and the faucets) his comment was that he had no problems and was surprised. I haven't used it very much, but so far it has performed well. My husband likes the grills in the bottom of the sinks. It was packed well and shipped promptly. The protective bag was nice and now my husband is thinking of ways to use it, unless I think of something first. The sound proofing is really good.
Date published: 2013-06-01
Rated 5 out of 5 by from Very pleased! We bought this sink during summer 2012. We love it. Not only it looks great but it is easy to clean. No scratches were observed up to this date. we get alot of compliments. it was easy to install and the price was reasonable. Overall the sink is perfect :)
Date published: 2013-02-28
Rated 5 out of 5 by from Great Sink! After agonizing... and I DO MEAN agonizing over which sink to go with, finally decided on the KBU23. Ordered it on Monday & it arrived on Friday, so, great turn around time. It is simply beautiful. No issues with the finish, the size (we have a 36" cab.), all the extras, & the price. I was willing to pay a lot more for a 16 guage sink, but for the beauty & value, you can't go wrong with Kraus. It did have a slight exoxy like odor when we opened the box... just needs a little airing out to correct. Was looking at the combos with the faucet & soap dispenser included, but decided to go with Grohe (a faucet we had used & knew the quality of). Kudos to Kraus for a great sink with all the bells & whistles for an excelent price. We simply could not have made a better choice for our kitchen remodel!
Date published: 2012-11-10
Rated 5 out of 5 by from Great Buy I admit I had never heard of the Kraus brand before, but after reading the reviews I thought I'd give it a try. Boy were the reiviews right . This is a beautiful sink. Very well insulated and getting the drains and bottom rack was just a Big added bonus. I have paid more for stainless sinks in the past , but done were any better or even as nice as this sink. Would buy again in a heart beat!
Date published: 2012-08-16

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