Metal-Fab Type B-Vent 28" Heavy Support riser Used when the pipe is

Used when the pipe is supported by the TGAS

Model SF4-PT Clearance UL and ULC listed to 1777 standard

Designed to fit Monessen 32/36/42 inch fireplace insert

Compatible with Burner Type: DFC7

Metal-Fab Type B-Vent 28" Heavy Support riser Used when the pipe isType 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