AllFuel HST Wall Thimble for Double Wall Chimney Pipe

Allfuelhst Wall Thimble for 8 inch Diameter Chimney Pipe

• Made of 304 stainless steel.
• Unit stretches to accommodate a wall 6 to 10 inches thick.
• UL Certified.

The Wall Thimble is used for through-the-wall chimney installations. It protects the wall as the chimney passes safely through to the outside, and provides a finished look to the framed opening on the inside. The Wall Thimble can adjust to accommodate walls from 6 in. to 10 in. thick.