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.
Made of heavy duty aluminum
Adjustable to fit pipes from 9 in. to 11 in. diameter
Recommended for flue， hot stack or b-vent installations
UL listed
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