DuraVent DuraVent 8" Inner Diameter - DuraPlus Class A Chimney Pipe - Triple Wall - 16.5" Fire Radiation Shield

DuraPlus Collection 8" Class A Chimney Pipe Firestop Radiation ShieldThe DuraPlus 8" Class A Chimney Pipe Firestop Radiation Shield is used in ceiling/floor penetrations when a ceiling support is not used. Not required when passing through the roof. Fits on underside of ceiling and adjusts to cover framing. See installation instructions for proper placement.Features: Inner Diameter: 12 3/16"Dimensions: 16-1/2" x 16-1/2"Total Height: 16"Outer Diameter: 12-7/8"Use in Ceiling/Floor Penetrations when Ceiling...