DuraVent DuraLiner 6" x 13" Round Extend-A-Cap Kit 74in Standard outside combustion air intake

Standard outside combustion air intake

Model: 8140A

Laser Cut Options

F-1631B Height 30 in

900 CFM airflow rating

DuraVent DuraLiner 6" x 13" Round Extend-A-Cap Kit 74in Standard outside combustion air intakeDuraLiner ensures safe and efficient venting of heating appliances while protecting the masonry chimney from the damaging effects of flue gas. It is the only factory insulated product with zero zero clearance for high heat wood burning appliances. No need to uncoil flex, insulate a majority of the pipe, or protect the insulation when installing. A smooth inner means less creosote buildup. Installers reduce labor time by 50% or more with DuraLiner. No