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At a Glance
Why Choose This Product
Helps prevent water intrusion around mixing valve penetrations
Maintains the integrity of bonded waterproofing systems
Sized for 4-1/2" mixing valve openings
Designed for long-term wet-area installations
Fits directly around the valve penetration
Suitable for tiled shower and tub wall assemblies
Product Information
The HYDRO-BLOKĀ® Mixing Valve Seal is a waterproofing accessory designed to seal 4-1/2" mixing valve penetrations in tiled shower and tub wall assemblies. It creates a watertight seal around valve openings to help maintain the integrity of bonded waterproofing systems.
Designed for standard 4-1/2" mixing valve openings, the seal installs directly around the valve penetration and integrates with shower and tub wall waterproofing assemblies. It helps prevent water intrusion where plumbing fixtures pass through the waterproofing layer.
Constructed from a moisture-resistant composite material, the Mixing Valve Seal is built for wet-area installations. Its 9-1/4" overall diameter provides coverage around the valve opening while maintaining continuous waterproof protection behind the finished tile surface.
Common Questions
It is designed to waterproof 4-1/2" mixing valve penetrations in tiled shower and tub wall assemblies.
The seal is designed for standard 4-1/2" mixing valve openings.
The HYDRO-BLOK Mixing Valve Seal has an overall diameter of 9-1/4".
Yes. It is designed for both tiled shower wall and tub surround waterproofing applications.
It is manufactured from a moisture-resistant composite material for wet-area installations.
Yes. It is designed to integrate directly with bonded waterproofing systems to maintain continuous waterproof protection.
The seal installs directly around the mixing valve penetration before the waterproofing assembly is completed.
Properly sealing the valve penetration helps prevent water intrusion behind the tile assembly and maintains the integrity of the waterproofing system.
