DuraVent DuraVent 4" Inner Diameter - Type B Round Gas Vent Pipe - Double Wall - 12" Adjustable Pipe Length

Round Gas Vent Collection Aluminum 12 Inch Length Round Adjustable Pipe with 4 Inch Inner DiameterThis Aluminum 12 Inch Length Round Adjustable Pipe 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 to add length to a straight length of Type B Gas Vent. 12” adds 3”-10” of length, 18” adds 10”-16” of length. Requires a 2” overlap.Features:Fuel Type: Gas, Liquid PropaneInner Diameter: 4"Length: 3" to 10"Height: 12"D...