DuraVent DuraFlex AL 3" Aluminum Coupler h44.375 (800+400+200= 1

(800+400+200= 1

Model HRSQ25 Maximum BTU Output 25

sides and bottom of the fireplace body

Length 11" Technical Dimensions

Model Number OFG145CG-NG Length 41

DuraVent DuraFlex AL 3" Aluminum Coupler h44.375 (800+400+200= 1DuraFlex 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.