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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.
DuraVent® DuraFlex AL 3DFA-TP Top Plate, 4 in H, Fits Duct Size: 3 in, Aluminum