Hog Slat Inc. Newton Grove, NC USA June 2023 6 Air Storm Fans Installation Framing The rough in opening for the fan is an exact measurement that accounts for the heads of fasteners and openings for fan. Ensure there is proper clearance for installation or rough opening may require larger measurements. Fan Model Rough Opening (Width x Height) 36” Poly Outside Mount Panel Fan 43” x 43” (144.8 cm x 144.8 cm) Additional Mounting Holes may added to accommodate rough openings that range between large and small rough openings
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