Metal-Fab Type B-Vent 4" to 5" Diameter No-Height Increaser w50.75 SS Plate: 4 3/8" h

SS Plate: 4 3/8" h x 4 3/8" w

This system installs in an interior wall to brighten adjoining rooms – or in an exterior wall with the optional stainless steel outdoor kit for a beautiful view

Beautiful smoked glass doors to fit modern style

the installation of a fresh air intake is not required

Combustible Side Wall Placement for HVF-36 and HVF-42  Combustible Side Wall Installation for HVF-42 Guideline Dimension for Corner Application HVF-42 Warranty

Metal-Fab Type B-Vent 4" to 5" Diameter No-Height Increaser w50.75 SS Plate: 4 3/8" hType 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