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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
Holds up to 1" filter
One-piece removable slide damper for off-season closure
Stamped from cold roll steel
Countersunk mounting holes for flush appearance with stainless sheet metal screws
For evaporative cooling or high-velocity exhaust applications
4" Round Horizontal/Vertical Fire Damper 2650-18 Commercial Holds up to 1" filterh3. Standard Features * 2649 Round damper for vertical mount only. Available 4" thru 52" round. * 2650 Round spring actuated (6) damper for vertical or horizontal mount. Available 4" thru 52" round. * UL and California State Fire Marshall approved * 4 1 4" standard frame style * 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 locking
