Metal-Fab Type B-Vent 4" Adapter liner Heat Out Kit

Heat Out Kit

Lava Rock Must be Purchased Separately

Made to fit any chimney shape or diameter

Weatherproof Cover: 5 1/2" h x 5 1/2" w x 2 3/4" d (tab on cover extends 1/4")

Metal-Fab Type B-Vent 4" Adapter liner Heat Out KitType 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