DuraVent DuraVent 4" Inner Diameter - Type B Round Gas Vent Pipe - Double Wall - Firestop Spacer

Round Gas Vent Collection Aluminum Firestop Spacer with 4 Inch Inner DiameterThis Aluminum Firestop Spacer with 4 Inch Inner Diameter from the Round Gas Vent series is a Type B gas component and consists of the duralock system for a tight seal. Use at every ceiling level where Square Firestop Support is not used.Features:Fuel Type: Gas, Liquid PropaneInner Diameter: 4"Length: 8.75"Width: 6.75"Double Wall ConstructionUL ListedUse at Every Ceiling Level where Square Firestop Support is not UsedDuraVent Typ...