DuraVent DuraTech All-Fuel Galvanized Attic Insulation Shield - For 5" Inner Diameter DuraTech: A vent pipe with a 5" inner diameter is required for this unit. An attic insulation shield is essential when installing a chimney liner that passes through an attic to protect your property from harm caused by the accumulation of insulation around the chimney pipe. This insulating shield is made to fit DuraTech chimney liner systems with a 5" diameter. This shield is made of galvanized steel and is corrosion resistant. With a limited lifetime warranty, you can rest assured that our attic insulation shield will keep your house safe for many years to come.

Durable galvanized steel construction For use with 5" DuraTech chimney pipes Required for installations that pass through an attic Prevents insulation from accumulating near chimney piping