Skip to content
FREE Shipping on Qualified Orders Over $49.99 | Now Also Offering FREE Shipping on Oversized Items Over $2500!
FREE shipping on qualified orders.... Learn More
KOHLER
SKU K-33425-NA

KOHLER K-33425 36" extension kit for 2-1/2" linear drain channel

Original price $395.50
Original price $395.50 - Original price $395.50
Original price $395.50
Current price $296.62
$296.62 - $296.62
Current price $296.62
Availability:
6 in stock, ready to be shipped

Linear drains bring a modern look to any shower they're installed in, and this 36" extension kit for the KOHLER 2-1/2" linear drain channel will allow your drain to go the distance in larger showers. This kit includes a 36" channel with adjustable subfloor brackets, allowing you to extend your existing linear shower drain channel from 60" to 96" long. This product is intended to be installed with the K-80646 linear shower drain.


  • Extends drain channel length by up to 36", from 60" to 96", for precise wall-to-wall installation
  • Increases the standard drain's flow capacity from 15 gpm (56.8 lpm) to 30 gpm (113.4 lpm). Rate may vary by installation
  • Drain outlet location can be adjusted to bypass joints, venting, or other in-floor obstacles
  • Outlet adapter can be preattached to drain pipe for simplified installation and access to couplings
  • Easy-clean domed hair strainer prevents clogs
  • Subfloor brackets are height-adjustable to ensure the drain channel is mounted at the correct height during installation
  • Wide-top flange with protective film ensures excellent waterproof adhesion
  • Can also be installed with KOHLER side-outlet adapter K-28987 (sold separately)
  • Requires at least two Kohler 2-1/2" x 36", 2-1/2" x 48", or 2-1/2" x 60" linear drain grates to span desired final drain length

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare