Metal-Fab Type B-Vent 7" to 12" Increaser h30.25 all you need to do

all you need to do is hang and secure your fireplace with the included screws

Follow the manufacturers instructions for safe installation and operation

Standing pilot valve system ensures ready operation during power outages

an inner and outer liner that must beused together

Metal-Fab Type B-Vent 7" to 12" Increaser h30.25 all you need to doType 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