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Front of Mixing Valve Seal
Back of Mixing Valve Seal

Goof Proof Sheet Membrane Mixing Valve Seal is used for additional water control around shower valves. Installs easily with modified thin-set or Goof Proof Sealant GPS-2000. Measures 9.25 ins. x 9.25 ins. x 20 mil thick. A 4.5 in. rubber reinforced center opening hole fits most valves

GPMVS-Mixing Valve Seal