DuraVent DuraFlex AL 3" Aluminum Coupling d15.5 13"W x 23"L x 12"H

13"W x 23"L x 12"H

is the perfect unit for compact installations

6" x 9" Aluminum Pipe Length

DuraBlack® is an excellent choice

allowing versatility for a range of room spaces

DuraVent DuraFlex AL 3" Aluminum Coupling d15.5 13"W x 23"L x 12"HDuraFlex 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.