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Nylon bushings on adjustable blades prevent metal on metal rattle
3/4" round collar
INSTALLATION INSTRUCTIONS
One-piece removable slide damper for off-season closure
Standard Features * Field installable butterfly damper * Available in sizes 6
2" Vertical Mount Fire Damper 2501-36X12 Specialty Products Nylon bushings on adjustable bladesh3. 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
