DuraVent DuraFlex AL 3" Aluminum Coupler w11.1 Modern Interior: Provides a solid

Modern Interior: Provides a solid dark interior finish

Just hook the tank up to the supplied 10ft hose and regulator

Covers have a pull string at the bottom for ease of applying and removal

Venting Dimensions: 6"

DuraVent DuraFlex AL 3" Aluminum Coupler w11.1 Modern Interior: Provides a solidDuraFlex Aluminum 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.