This insulated thimble allows a six inch diameter pipe to pass through a combustible wall and through a brick chimney. You must use a cover to do this. The vent pipe must also be six inches in diameter. An eight inch insulated thimble can pass through a seven inch thick wall. Two thimbles can be adhered together allowing them to pass through a wall up to 15 inches thick. This venting product is UL listed.
- Allows passage through a combustible wall into a masonry chimney when used with cover
- For use with vent pipe with a 6" inner diameter
- 8" long thimble can pass through a 7" thick wall
- May be cemented to another thimble to pass through walls up to 15" thick
- UL Listed
- Required Opening: 15" x 15"