DuraTech 6 inch Class A Chimney Pipe Wall Thimble adjusts from a minimum of 4 inch to a maximum of 10 inch wall thickness, and fits between standard wall studs. To accommodate thicker walls, the telescoping pieces can be extended up to 16 inch with a field-fabricated extension installed. Interior trim ring painted black. Must be installed with DuraTech chimney pipe horizontally through the wall and extend 6 inch into the room beyond the interior wall. (Black painted DuraTech is available).
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