The type B designation is assigned to gas venting systems that meet the safety requirements of Underwriters Laboratories, Inc. The AmeriVent all-metal, double-wall gas vent is listed as type B by UL and is approved for residential and commercial applications such as Category 1 water heaters, boilers, furnaces, space heaters, or wall heaters. UL-approved type B gas vent products form a continuous passageway from an approved gas appliance to the termination of the vent above the roof of the structure.
AmeriVent® Universal Adapter, EUA Model, 4 in Size, Female Connection, 0.012 in Aluminum Alloy Inner and 0.018 in Galvanized Steel Outer, 4-1/2 in OD, 6 in H
Outside Diameter | : | 4-1/2 in |
Height | : | 6 in |