Metal-Fab Type B-Vent 6" Firestop Spacer converts-from-single-flue-to-direct-vent which is exactly what this

which is exactly what this flexible gas line is

The Model 1127 features a factory installed variable speed blower system

IP 65 rated

UL 2112 Diameter 13" to 11" Height 12" to 22" Width 16" Color Silver Technical Drawings & Dimensions

Fireplaces

Metal-Fab Type B-Vent 6" Firestop Spacer converts-from-single-flue-to-direct-vent which is exactly what thisType 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