DuraVent PelletVent Pro Attic Insulation Shield - For Vent Pipes with a 4" Inner Diameter - 4PVP-IS: This unit necessitates a venting pipe with a 4" inner diameter. If your attic has any vent piping, you'll need this specifically built pipe insulation shield. PelletVent Pros insulating screen adds an extra layer of safety to your home by preventing insulation from building up near your vent piping. It also has a 1" clearance from combustibles and is compatible with vent pipes having a 4" inner diameter. The shield also contains a limited product guarantee and secure twist-lock connectors.

Prevents insulation from accumulating near vent piping *Required for installations that pass through an attic Secure twist-lock connections Provides 1" clearance to combustibles Fits PelletVent Pro Vent Pipes with a 4" inner diameter Limited lifetime warranty