Storm Collar for 8" Inner 10" outer Diameter Class-A Chimney PipeFor 8" pipe with 10" outer size! The storm collar works together with the Roof Flashing to provide a waterproof seal where the chimney passes through the roof. The storm collar is installed directly above the flashing and must be sealed to the chimney pipe using high temperature silicone sealant (RTV 500F or better), sold separately.
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