An economical venting system used for relining masonry chimney for natural gas or liquid propane category I, draft hood equipped appliances, and appliances tested and listed to use Type B Gas Vent for a wide range of applications, including: natural gas fireplaces, gas-fired furnaces, boilers, water heaters, and wall or space heating applications. Protects the masonry chimney from damaging effects of flue product condensation.
Materials and construction: single-wall 0.01 in aluminum (2-ply of 0.005 in)|Use to terminate a relining system at the top of the masonry chimney|Supports flex with a fast connect band|Designed to fasten to flex length with fast connect band|No screws required
DuraVent DuraFlex AL Vent Cap, Fits Duct Size: 4 in, 8 in Cap Width, 5 in Cap Height, Aluminum, For Use With: DuraFlex AL Type B Flexible Gas Vent