Metal-Fab Type B-Vent 4" x 4" x 3" Swivel Tee w25.4 Dark oak mantel

Dark oak mantel

you eliminate the supply of oxygen which extinguishes the flame

Dual Gas Knockouts (Note: Not approved for vent free logs)

3 cm x D 18

Metal-Fab Type B-Vent 4" x 4" x 3" Swivel Tee w25.4 Dark oak mantelType 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