Metal-Fab Type B-Vent 3" Storm Collar d74 Each coupler has the capacity

Each coupler has the capacity to make either a 1-4" connection or a 1-7" connection for secure fittings on the venting line

3Sided Viewing

Vent components

Stainless steel pan burner – criss cross pattern

Metal-Fab Type B-Vent 3" Storm Collar d74 Each coupler has the capacityType B Gas Vent products are tested and listed to UL 441 for approved gas appliances and feature our innovative twist lock connection and locking tab, eliminating the need for sheet metal screws. Metal Fab Type B Gas Vent combines hemmed flues and casings that maximize product durability and reliability and minimize installation time. Designed for versatility, Metal Fab Type B Gas Vent products 3" 6" adapt to major competing brands and when installed