Selkirk DSP7IWT Insulated Wall Thimble, 7"
Description
Highlights:
- Size: 7"
- 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 opening in the wall for No. 206463 is 8.25"; for No. 207463 - 9.25"; and No. 208463 - 10.25"