Selkirk 206463 Sure-Temp Insulated Wall Thimble, 6 inch, 6″

Installs quickly and eliminates need for using individual fire stops. 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. Highlights: Size: 6″ No. 6T-WT Outside Diameter: 19″ Framing Dimensions: 16″ X 16″ Type A chimney Telescopes from 6″ to 11″ wall thickness Provides 2″ clearance to combustibles Installs quickly Eliminates individual fire stops Fiber insulation reduces drafts Boxed