Goof Proof Sheet Membrane Mixing Valve Seal provides additional water proofing around shower valves. Protects moisture-sensitive backing panels at the mixing valve. Installs easily with modified thin-set or Goof Proof Sealant.
4.5 in. rubber opening fits most valves
1 unit per package
Installs easily with modified thin-set or Goof Proof Sealant GPSL-2000
Additional moisture protection
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