KERDI-SEAL Mixing Valve Seal 4-1/2" Opening
Couldn't load pickup availability
Tell us about your project and we’ll find your best deal.
Product Information
Product Overview
The KERDI-SEAL mixing valve seal waterproofs the toughest penetration in any tile shower: the opening where the valve breaks through the wall. This preformed piece bonds into your KERDI membrane so water can't sneak behind the tile and rot the wall. It's the detail pros never skip and DIYers wish they knew about.
The seal fits a 4-1/2" valve opening and installs with thin-set over KERDI or KERDI-BOARD, sealing the gap around the valve body before you set tile. Use it alongside KERDI-BAND at seams and corners for a fully bonded, watertight assembly.
Get the mixing valve detail right the first time. Tile Outlets stocks the KERDI-SEAL for crews building leak-proof showers across Southwest Florida.
Specifications
- Category
- Materials
- MPN
- KMSMV235/114
Fast & Flexible Delivery
Get materials delivered where you need them, when you need them.
- Ship to home, job site, or business
- U.S. & Canada – wide delivery
- Flexible scheduling for your project
- Trusted carriers + order tracking
Large orders? Our team coordinates delivery so your materials arrive on time and ready to install.
Easy Returns
Buy with confidence — we make returns simple.
- Return unopened products up to 90 days
- Clear, straightforward return process
- Support when plans change or projects shift
- Fast resolution once items are received
For large or special-order items, our team will help review options and next steps.
Customer Reviews
No reviews yet
Be the first to review this product — share how it looks and how the install went.
Thanks for your review!
It's with our team now and will appear here once it's published.
Write a review
Tell other shoppers how KERDI-SEAL Mixing Valve Seal 4-1/2" Opening looks and how the install went.

