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Countersunk mounting holes for flush appearance
OTHER DOCUMENTS
055 T6 extruded aluminum surface mount supply diffuser * Four air patterns: CB10 - one way
Zinc plated steel closure spring
parallel to longest dimension
4" Round Horizontal/Vertical Fire Damper 2650-16 Commercial Countersunk mounting holes for flushh3. 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
