Metal-Fab Type B-Vent 3" x 36" Single Wall Flex Connector high-efficient-wall-furnace The Monessen UD4 4-inch Uninsulated

The Monessen UD4 4-inch Uninsulated FlexDuct for Outside Air is just one of the many options offered by Monessen

Model VFLC20IN32 Vent Type Vent Free Installation Zero Clearance Fuel Type Natural Gas Ignition Type Millivolt Input BTU/Hr Maximum 20

Supercast™ concrete

The Monessen Refractory Firebrick for Exacta Fireboxes gives you the authentic masonry appearance

Metal-Fab Type B-Vent 3" x 36" Single Wall Flex Connector high-efficient-wall-furnace The Monessen UD4 4-inch UninsulatedType 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