Photo 1 of Wall Thimble For 6" Double Wall Chimney Pipe(8" Inner Ring), 304 Stainless Steel Double Wall Insulated Chimney Pipe Wall Thimble

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Photo 1 of Wall Thimble For 6" Double Wall Chimney Pipe(8" Inner Ring), 304 Stainless Steel Double Wall Insulated Chimney Pipe Wall Thimble