Metal-Fab Type B-Vent 12" Tee Cap h22.25 Model 21 can be used

Model 21 can be used as a fireplace insert with optional insert kit

Whole log with natural bark detail eight-piece log stack – so authentic its indistinguishable from the real thing

You may choose to leave all four inches of the trim exposed

attic installation is not intended for these sizes

Metal-Fab Type B-Vent 12" Tee Cap h22.25 Model 21 can be usedType 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