Heat-Fab Insulated Saf-T Stovepipe Wall Thimble - For Stovepipe with 5-Inch and 6-Inch DiametersComplete with solid-pack insulation, this Heat-Fab Insulated Saf-T Stovepipe Wall Thimble makes it simple and safe to pass single-wall stovepipe through a combustible wall. For use with walls 4" to 8.5" thick.

- Allows single-wall stovepipe to safely pass through a combustible wall
- Easily attaches to chimney
- Solid-pack insulation
- Can be used with walls 4" to 8.5" thick
- Fits stovepipe with a 5" or 6" diameter
- UL Listed
- *A 16" W x 17" H opening is required for installation
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