Sure-Temp 206463 Insulated Wall Thimble, 6 in

Installs quickly and eliminates need for using individual firestops. 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. The hole op ening in the faceplate for No. 206463 is 8.25; for No. 207463 - 9.25; and No. 208463 - 10.25.Sure-Temp Wall Thimble, Insulated, 6 in Nominal, 19 in Outside Diameter, Framing Dimensions: 16 X 16 in, 6 - 11 in Wall Thickness, 11-1/8 X 11-1/8 in Opening