Metal-Fab Type B-Vent 4" Diameter Oval to Round Adapter pewter It keeps the outer wall

It keeps the outer wall of the chimney cool while ensuring high flue gas temperatures for optimum draft performance

Wattage: 1230/2430

625 inches wide

Seal inner edge of the collar to the chimney pipe with non-hardening 500° F high-temperature sealant

Removable Flip Grill with Cool-to-the-Touch Spring Handles

Metal-Fab Type B-Vent 4" Diameter Oval to Round Adapter pewter It keeps the outer wallType 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