Schluter KERDI 323 Waterproofing Membrane

Schluter KERDI 323 is a sheet-applied waterproofing membrane that bonds to walls and floors to create a watertight surface behind tile. It is a pro standard for showers, tub surrounds, and other wet areas.

Sold by the linear foot so you can buy exactly what your project needs. It installs over the substrate before tile and helps protect the structure from moisture for the long term.