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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
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Description
36" Extension Kit for 1-1/4" Linear Drain Channel 33426-NA Kohler> Linear drains bring a modern look to any shower they're installed in, and the K 33426 36" extension kit for 1 1 4" 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 32619 linear shower drain. Dimensions: > Origin: >
Linear drains bring a modern look to any shower they're installed in, and the K-33426 36" extension kit for 1-1/4" 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-32619 linear shower drain.
- Outlet adapter can be preattached to drain pipe for simplified installation and access to couplings
- Drain outlet location can be adjusted to bypass joints, venting, or other in-floor obstacles
- Easy-clean domed hair strainer prevents clogs
- 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
- 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 1-1/4" x 36", 1-1/4" x 48", or 1-1/4" x 60" linear drain grates to span desired final drain length
- Extends drain channel length by up to 36", from 60" to 96", for precise wall-to-wall installation
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
The quality it’s the best
Best filters ever bought I will buy it again
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Reviewed in the United States on March 22, 2026
★★★★★ 5
Recomendado 10/10
Fácil de instalar y se ve de buena calidad a comparación del que tenía en Valvoline por casi el mismo precio, compré este filtro para mi Civic 2017
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Reviewed in the United States on March 1, 2026
★★★★★ 1
Bad
Horrible air flow I don’t recommend and yes it was installed correctly. Don’t waste your money
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Reviewed in the United States on January 17, 2026
★★★★★ 5
Maintained airflow
Difficult to know how well it’s filtering the air. But it installed correctly and I am still getting good airflow through my vents
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Reviewed in the United States on February 8, 2026
★★★★★ 5
High-Quality Cabin Filter with Carbon Pre-Filter
This filter was easy to install in a 2010 Honda Fit. I wanted a HEPA filter given my severe allergies. The honeycomb carbon side looks similar to my Winix and Air Doctor carbon filters so it felt high quality.
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Reviewed in the United States on August 18, 2025