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Ships within 48 hours · Estimated delivery Aug 29 - Sep 3
Spiral pipe diameter must be 4” larger than the width of the grille
Accessory to the 90 Series
Hinged removable extruded aluminum face frame with signature line marks
Standard Features * For large volume air delivery * For evaporative coolers or central blower systems * Adjustable directional dampers with shut-off * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White
1/2" spacing dual angular louvers for strength and maximum free area
2" Vertical Mount Fire Damper 2501-36X28 past 12 months Spiral pipe diameter must beh3. Standard Features * 2501 Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2" thinline frame * Interlocking steel roll formed blade (3) with roll formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G 90) * Self
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