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48" x 48" Draft Stop
Two piece, #20ga galvannealed steel sheet metal flashing and draft stop, some times referred to as fire stop, installed at floor openings around the chute to separate the chute shaft from the collection room. Occasionally installed at every floor.
This is 48" x 48" and will fit most chute shafts designed for 36" diameter chutes. Please verify actual overall dimension and chute diameter before ordering. Order a size larger than required, if exact size is not found. Field triming may be required to fit job specific conditions.
Where necessary, draft stop mounting angles are available.