Kohler K-303-K Coralais 1/2 Inch In-Wall Three-Handle Valve System with Integral Diverter and 8 Inch Centers

- Item #: BCI223103

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    1/2" ceramic wall-mount 3-handle valve system
    This ceramic wall-mount 3-handle valve system works behind the scenes to get optimal performance out of your KOHLER faucet. It features an integral diverter mechanism, solid brass construction for durability and reliability and one-piece ceramic valves resistant to debris and hard water buildup. Ergonomic handle rotation provides on/off water control with only a quarter turn.
  • One-piece ceramic valve resists debris and hard water buildup
  • Ergonomic handle rotation provides on/off water control with only a quarter turn
  • Integral diverter mechanism
  • Solid brass construction ensures years of reliable performance

Additional Kohler Links

Our SKU: Kohler K-303-K

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

*Denotes a finish or option that has been discontinued

Kohler K-303-K Product Specifications

Specification Sheet
Installation Guide
Inlet/Outlet Size .5
Pressure Balanced No
Scald Guard No

Installation Resource Center

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Kohler K-303-K Reviews

Rated 5 out of 5 by from
Date published: 2009-07-24
Rated 5 out of 5 by from worked perfectly Rough in worked perfectly with the tub and shower fixtures I ordered. My plumber had no problems with installation
Date published: 2011-04-19
Rated 5 out of 5 by from Really Pleased I am so pleased with this valve. It installed easily. Quality product. Great clear instruction. FaucetDirect has the best price and free delivery. Very easy to use their website, compare, and order. FaucetDirect has good clear email communication on the progress and delivery of my order. I would recommend FaucetDirect to my friends.
Date published: 2011-10-05
Rated 5 out of 5 by from Kholer fawcet order We saw what we wanted on the web site. The price was acceptable as fawcet prices go. We ordered it, it was delivered on time and in perfect shape. Nothing else to say other then we were completely satisified.
Date published: 2012-09-04
Rated 5 out of 5 by from Very good guality. Soid Brass. Easy to install. Solid function. It comes with compression fittings for the supply lines which shouldn't need pipe thread sealer, I still needed to use some to get them to seal. I will be adding a shower in another part of my house soon and will definitely use this same valve there too. I trust Kholer for long term use in my home.
Date published: 2013-11-23
  • Does this valve require a slip-on faucet or NPT connection?

    A. There is only one facuet that works with this, which is T-15235.

  • Is there a flow rate specification for this valve?

    A. The Kohler K-303-K Flow Rate is: 11.0 - 12.0 gpm

  • Why can't this be used on a deck mount or Roman system? This is exactly the setup I need but I need it for a horizontal mount.

    A. This valve is specifically designed by Kohler to only be for wall mounted, 3 handled, shower systems. It will not mount nor function properly as a deck mount.

  • Does this product incorporate a pressure compensation valve?


    K-303-K does not have a pressure compensation.

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