DuraVent DuraFlex AL 3" Aluminum Universal B-Vent to Aluminum Flex Adapter diamond-glass Air Shutter 1/4” Open Certification

Air Shutter 1/4” Open Certification Outdoor Dimensions

IntelliFire ignition system

Warranty Lifetime warranty on burners Options and Accessories

Increase customer satisfaction and efficiency/ profitability

any exterior exposed metal

DuraVent DuraFlex AL 3" Aluminum Universal B-Vent to Aluminum Flex Adapter diamond-glass Air Shutter 1/4” Open CertificationDuraFlex 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.