Installs quickly and eliminates the need for using individual firestops. The round shielding acts as a radiation shield and provides the required 2″ air space clearance to combustibles. The 2 sections telescope to accommodate 6″ to 11″ wall thickness. No. 206463: Size: 6 In., Diameter: 19 In., Opening Size: 12-1/8 In. x 12-1/8 In., Wall Thickness: 6 to 11 In., Clearance To Combustibles: 2 In., Material: Galvanized Steel, For Use With: Model SSII, Pkg Qty: 1 No. 208463: Size: 8 In., Diameter: 22 In., Opening Size: 14-1/8 In. x 14-1/8 In., Wall Thickness: 6 to 11 In., Clearance To Combustibles: 2 In., Material: Galvanized Steel, For Use With: Model SSII, Pkg Qty: 1
