Master Flow 9 in. to 11 in. Adjustable Versa Cap
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The GAF Master Flow 9 in. to 11 in. Adjustable Versa Cap is recommended to be used with flue, hot stack or B-vent installations. This cap is adjustable to fit pipes with a 9 in. to 11 in. diameter using an adjustable clamp design for easy installation. This product is made with all aluminum to resist rusting like sheet metal.