Metal-Fab Type B-Vent 4" x 60" Double Wall B-Flex Flexible Pipe Length d31.75 Finished on all four sides

Finished on all four sides

Extended Black Hood

Does the fan block my chimney

7 cm Shipping Size 19 1/2 x 57 1/4 x 9 1/4″

Metal-Fab Type B-Vent 4" x 60" Double Wall B-Flex Flexible Pipe Length d31.75 Finished on all four sidesType 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