Home / Underlayment / Goof Proof Shower Goof Proof Waterproofing Sheet Membrane Underlayment Mixing Valve Seal 9.25 in. x 9.25 in. x 20mil
  • Goof Proof Shower Goof Proof Waterproofing Sheet Membrane Underlayment Mixing Valve Seal 9.25 in. x 9.25 in. x 20mil
  • Goof Proof Shower Goof Proof Waterproofing Sheet Membrane Underlayment Mixing Valve Seal 9.25 in. x 9.25 in. x 20mil
  • Goof Proof Shower Goof Proof Waterproofing Sheet Membrane Underlayment Mixing Valve Seal 9.25 in. x 9.25 in. x 20mil
  • Goof Proof Shower Goof Proof Waterproofing Sheet Membrane Underlayment Mixing Valve Seal 9.25 in. x 9.25 in. x 20mil
  • Goof Proof Shower Goof Proof Waterproofing Sheet Membrane Underlayment Mixing Valve Seal 9.25 in. x 9.25 in. x 20mil
  • Goof Proof Shower Goof Proof Waterproofing Sheet Membrane Underlayment Mixing Valve Seal 9.25 in. x 9.25 in. x 20mil

Goof Proof Shower Goof Proof Waterproofing Sheet Membrane Underlayment Mixing Valve Seal 9.25 in. x 9.25 in. x 20mil

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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.