Metal-Fab Type B-Vent 14" to 20" Increaser h21.63 These adjustable elbow allows for

These adjustable elbow allows for pipe adjustments on 90-degree angle

Wall comes in a three-paneled section

Finish High Temp Black Warranty

The two vent pipes may be concentric (exhaust pipe within a larger diameter intake pipe) or co-linear (separate pipes of about the same size)

the heater will automatically maintain the temperature you set

Metal-Fab Type B-Vent 14" to 20" Increaser h21.63 These adjustable elbow allows forType 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