Kohler K-3821-3 Stainless Steel Vault 33" Single Basin Top-Mount/Under-Mount 18-Gauge Stainless Steel Kitchen Sink with SilentShield

- Item #: BCI1276267

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  • Do It Yourself: Replacing or Installing a Kitchen Sink
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This product has additional required/recommended options. To configure, add to your cart.

  • Garbage Disposal recommended
  • Basin Rack Recommended
  • Basket Strainer Required
Product Features:
  • Single basin design provides maximum available workspace
  • Covered under Kohler's limited lifetime warranty
  • The distinctive, modern design of the Vault sink lends a contemporary vibe to any kitchen
  • This spacious sink features tightly angled corners to maximize basin space and sloped bottom that helps with draining and clean up
  • Hand crafted from 18-gauge stainless steel giving both the aesthetic beauty you want and the durability and longevity you need
  • Top-mount or Under-mount installation options
  • Rear drain location increases workspace area in the sink as well as storage area underneath
  • All hardware needed for installation included

Product Technologies / Benefits:

  • SilentShield®: A sound-absorption system found in many Kohler sinks that significantly reduces the noise from clanging dishes and silverware, as well as undesirable noise caused by running water and disposals.
Product Specifications:
  • Height: 9-5/16" (measured from the bottom of the sink to the top most point of the sink)
  • Overall Width: 22" (measured from the back outer rim to the front outer rim)
  • Overall Length: 33" (measured from the left outer rim to the right outer rim)
  • Basin Width: 16-9/16" (measured from the back inner rim to the front inner rim)
  • Basin Length: 30-1/4" (measured from the left inner rim to the right inner rim)
  • Basin Depth: 9" (measured from center of the basin to the rim)
  • Installation Type: Top-mount or Under-mount
  • Number of Faucet Holes: 1
  • Drain Outlet Connection: 3-5/8"
  • Minimum Base Cabinet Width: 35"
About Kohler:

Gracious living is characterized by qualities of charm, good taste, generosity of spirit and the enhancement of nature. It is Kohler’s mission that you can improve your sense of gracious living with every experience you have with a Kohler product or service.

With everything that Kohler does it lives on the leading edge of design and technology, while maintaining a constant level of quality regardless of price. Kohler sets the standard of excellence in its field, and yet is constantly striving to improve.

From sustainable products in the kitchen and bath, to engines for lawn tractors and generators, to power systems that protect data centers and urban landscapes all over the world; this is what the Kohler Company is all about.

Additional Kohler Links

Our SKU: Kohler K-3821-3

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

  • Kohler K-3821-3*
  • Kohler K-3821-3-NA*
    Not Applicable
  • Kohler K-3821-3-NA
    Stainless Steel

*Denotes a finish or option that has been discontinued

Kohler K-3821-3-NA Product Specifications

Specification Sheet
Installation Guide
Rough-In Guide
Basin Depth 9
Basin Length 30.25
Basin Rack Included No
Basin Split Single Basin
Basin Width 16.563
Basket Strainer Included No
Country Of Origin USA
Cutting Board Included No
Drain Connection 3.625
Drain Placement Rear
Farmhouse No
Faucet Centers 8
Faucet Holes 3
Faucet Included No
Gauge 18
Height 9.313
Installation Type Drop In, Undermount
Length 33
Made in America Yes
Material Stainless Steel
Number Of Basins 1
Sink Shape Rectangular
Soap Dispenser Included No
Sound Dampening Yes
Theme Modern
Width 22

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.

Kohler K-3821-3 Reviews

Rated 4 out of 5 by from Good sink but not great I love the size of this sink and that it came with the grate for the bottom. I really like that I can mount this as a drop in or an undermount. I have had it installed now for about 3 weeks. My only real complaint is that the bottom is not sloped enough to drain quickly and cleanly. This always leaves me with food bits in the corners that I then have to spend extra water/time spraying to the drain. At first the sink left huge puddles in the corners where the drain seemed to be the high spot. I put a heavy pan on the drain overnight and that seemed to fix the puddling problem completely. This sink does come with some soundproofing foam type stickers on the underside but I found it to still have some drumming. I will see if I can find any similar foam type stickers at the hardware store next time I am there and add a few more myself. Overall though it is not that much of a problem but it is louder than the rusting old cast iron beast we used to have. You can see in the first photo the sound dampening stickers and also the welded on rails under the lip that the screw clamps go into for drop down installation.
Date published: 2012-05-08
Rated 5 out of 5 by from Looks Great The sink looks great. I replaced a double cast iron sink and now having one basin makes it nice to clean larger pots and pans. Take your time on the installation if you are replacing an existing sink, you will probably need to increase the size of your existing opening. Mine came with the bottom basin rack even though it doesn?t state it in the description. I?m glad I didn?t initially order it as it would have needed to be sent back.
Date published: 2012-04-10
Rated 5 out of 5 by from Great Value for high end sink This sink is made well. Love the size and the way it's made/design. It came with a metal rack which I didn't think I would use, but it's great. Saves all the scratches on the sink. The lip on the self rim is so small I've never seen one like it. It's almost like an undermount because of the height (which is about 1/16". You can scoop stuff right in the sink.
Date published: 2014-02-17
  • How many faucet holes does this sink have?


    Hello, this sink has 3 holes. The model number is K-3821. When you add the -3 at the end that indicates three holes if you add a -1 that would be one hole.

  • What does the cabinet size have to be and what size is the rough opening for the sink (drop in style)

    A. The Kohler K-3821-3 requires a 34" cabinet per the manufacturer at minimum.
  • how big does the cabinet have to be for this sink and how big does the opening have to be (drop in style please)

    A. The Kohler K-3821-3 requires a 34" cabinet at least per manufacturer.
  • what guage is it?

    A. The Kohler K-3821-3 is 18-gauge stainless steel.
  • Does this sink (Kohler K-3821-3) have any sound dampening?

    A. The Kohler K-3821-3 is not sound dampening.
  • I am looking for quite sometime now and can't figure out which is best.. for counter top opening for undermount Kitchen sink

    A. I suggest the Kohler K-3348 based on the dimensions provided.
  • will this sink accomodate a garbage disposal?

    A. The Kohler K-3821-3 can accommodate a garbage disposal.
  • Does the sink come with the basin rack?


    The Kohler K-3821-3 will come with the bottom basin rack included. 

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