DuraVent DuraVent 20" Inner Diameter - DuraTech Class A Chimney Pipe - Double Wall - Storm Collar

DuraTech Collection 20" Class A Chimney Pipe Storm CollarWarranty Notice: M&G DuraVent warranty applies to this professional grade product only when installed by a trained professional installer. The DuraTech 20" Class A Chimney Pipe Storm Collar is required with DuraTech flashing to create a weather-proof penetration through the roof deck. Seal inner edge of the collar to the chimney pipe with non-hardening 500° F high temperature sealant.Features:Top Diameter: 22"Bottom Diameter: 33"Required with DuraT...