Metal-Fab Type B-Vent 12" to 14" Increaser h48 000 Heating Capacity 1

000 Heating Capacity 1

Model SF4-SPF99 Clearance UL and ULC listed to 1777 standard

A 17" Technical Dimensions

It adjusts the amount of heat delivered through rear register

Metal-Fab Type B-Vent 12" to 14" Increaser h48 000 Heating Capacity 1Type 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