Insulated Saf-T Thimble


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Heat-fab Insulated Saf-t Thimble- The UL Listed Saf-T Thimble allows single-wall stovepipe to pass through a combustible wall. It attaches to the chimney therefore avoiding a dangerous breach should the chimney settle and start to pull away from the house. The Saf-T Thimble features a solid-pack insulation that telescope inward toward the wall, allowing for easy adjustment for wall thickness of 4"-8 1/2". Both models need a 16" wide by 17" high opening for installation. Instructions are included.