Kraus KBU21 Stainless Steel 30" Undermount 60/40 Double Bowl 16 Gauge Stainless Steel Kitchen Sink

Item #: bci1513059
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Stainless Steel Tech Specs
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Leaves the Warehouse Today, August 24th
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Product Details for the Kraus KBU21 in Stainless Steel

Save $130 when you purchase this kitchen combo.

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) 30" sink with traditional rounded corners
  • Extra deep (9" depth) design is perfect for the semi-professional kitchen
  • Undermount installation; fits 34+" 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: 19-1/2" (measured from the back outer rim to the front outer rim)
  • Overall Length: 30" (measured from the left outer rim to the right outer)
  • Basin Width (Left): 17-1/2" (measured from the back inner rim to the front inner rim)
  • Basin Width (Right): 13-4/5" (measured from the back inner rim to the front inner rim)
  • Basin Length (Left): 16-1/2" (measured from the left inner rim to the right inner rim)
  • Basin Length (Right): 9-4/5" (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: 33"

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 "KBU21 combos" into the search bar at the top right of this page.
Our SKU: Kraus KBU21

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

*Denotes a finish or option that has been discontinued

Kraus KBU21 Reviews

Rated 5 out of 5 by from exceptional value after a detailed research effort I believe it was a great value you offered.
Date published: 2013-10-15
Rated 5 out of 5 by from Awesome experience I love my sink. It started out as a quest to just find a sink fast to fit my 30 inch base cabinet. What I got was a very high quality sink for a box store price, delivered in just a few days. When it arrived I knew I had something special when I saw how well it was packed for shipment. It even came in its own cloth bag. Then the granite installers were ohing and ahing when the saw it. They said I got a good one and would never be disappointed with the Krause brand. Now that it is installed, it is wonderful. I especially like the stainless grates that sit in the bottom. It is easy to clean, and the deep depth is great!
Date published: 2013-10-15
Rated 4 out of 5 by from Faucet placement is important!! I am generally happy with this purchase. I like the solidity of the sink, it doesn't have a metal feel or sound. The three things I would point out are: 1- The chrome finish on the two bottom grids is peeling after just 4-5 months of use. This looks cheap and dirty. 2- Advise your counter top installer to pay particular attention to your selected faucet and the position that it is placed. We paired this sink up with a Delta 980T-DST faucet. If you are selecting a similar faucet be aware that placing the faucet base along the back of the smaller sink basin will result in a water stream that is too close to the front edge of the sink. The height and curvature of this faucet warrants placing the base further back on counter. There is still room on standard counter depth to do this. 3- Protect the section of the sink, between the two basins, with a dish towel or something. The stainless steel was very noticeably scratched within a couple days for use.
Date published: 2013-08-03
Rated 5 out of 5 by from Love the sink The sink fit great in my new kitchen in the corner cabinet. Love the depth and works great. Would definitely put in another one when I do the next remodel. They shipped it direct to Quartz place so they had it in 2 days to cut the opening for the counter.
Date published: 2013-07-16
Rated 5 out of 5 by from Extraordinary sink! This sink is superior in every way,...from the product packaging, to the thick sturdy gauge steel, to the generous sound insulation, to the upscale drain basket. The basin grids are more attractive and functional that I thought they would be. I purchased the sink as part of a total kitchen remodel, and the sink gets as many rave reviews from friends as the granite counter tops! For just a very few dollars more that a chain store model, the difference is extraordinary. Now that I have experienced Kraus, I would not settle for less.
Date published: 2013-07-09
Rated 5 out of 5 by from better than expected This sink is very deep. And for our purpuse, an island sink, it is perfect. Very tough. Completely satisfied with this product.
Date published: 2013-03-28
Rated 5 out of 5 by from Wonderful About a two months ago, I did some research before I bought this sink. Today, I am very pleased with this product. It not only came well protected in its own cloth but all of the accessories that it said it was going to bring did come with it. This 30" undermont 60/40 sink made my kitchen look even richer than what I thought it would. I highly recommended this product to anyone who wants quality at a very resonable price.
Date published: 2013-03-27
Rated 5 out of 5 by from Perfect double bowl sink We are delighted with our Kraus sink. Our base cabinet limited us to a 30" sink and we were worried that it wouldn't be "roomy" enough, but this on is perfect! It's deep and the larger bowl fits even the biggest pans. We had the disposal installed in the smaller bowl and that makes it the perfect prep sink! The fact that it came with the basket strainers AND the stainless steel grates for the bottom of each sink was a real bonus! This one gets a SOLID 5 stars!!!
Date published: 2013-01-29
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12 Questions from the Community
Loading nanoRep

hi what is the interior cabinet measurement

The Kraus KBU21 interior dimension is Basin size: 16.5 inches x 17.5 inches x 9 inches and the 2nd is Basin size: 10.5 inches x 16 inches x 7 inches.

I ordered my sink Saturday night, using 2 day air shipping, and my contractor wants to have it on Monday. The order number is 58641656. Please confirm it will arrive by Monday. Or I have to return it.

Our shipping days are business days. Your sink shipped today (8/27/12) and will arrive to you on Wednesday (8/29/12).

Please tell me all about Kraus as we have never heard of it.

Kraus is one of the fastest - if not THE fastest - growing plumbing company in America. Excellent quality at even better pricing. Average customer rating of Kraus products is 4.88 Stars (out of 5). You won't be disappointed with a Kraus purchase

Will this sink fit into a 30" cabinet

This unit fits 30-33 inch cabinets.

Are any of the parts plastic? Is the a drain basket that fits the smaller sink on the right?

The sink and strainers in the Kraus KBU21 are stainless steel construction.

Do you have a specification or product diagram with dimensions on KBU21?

The Kraus KBU21 does have a specification sheet:

is this sink available with the smaller bowl located to the left of the larger bowl ?

The Kraus KBU21 is only available as shown, when facing the sink the smaller bowl will be on the right-hand side. Hope this info helps!

What is the shape of this sink?

To view the shape of the Kraus KBU21, please see the Kraus KBU21-KPF2220-KSD30, displayed on our site.

Where are kraus, American Standard, and Kohler products made?

Kraus is made in Germany and New York, American Standard is primarily made in China and New Jersey, Kohler's main factory is in Wisconsin.

Does this sink come in the reverse so the 40 is on the left?

The Kraus KBU21 is not offered in any other configurations.

Will this fit a 33" sink base cabinet?

The Kraus KBU21 will fit in a 33" cabinet.

Will this fit a 36" cabinet?

The Kraus KBU21 can fit in a 36" cabinet.

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