2" Round 3 Hour Vertical Fire Door 2565-28 past 12 months round collar only) * 830

round collar only) * 830 OR - factory installed opposed radial damper (sizes 6"-14") * 830 FR - U

Steel construction

smooth style * 360 air diffusion * Excellent for variable air volume applications * Hinged-down core for easy access * No Labor Collar * Seismic support hangers * Available sizes: 6"-10"

Square or rectangular for vertical mount only

2" Round 3 Hour Vertical Fire Door 2565-28 past 12 months round collar only) * 830h3. Standard Features * 2561 Square or rectangular fire door for vertical mount only. Maximum dimension 48w, 49h. For damper free area chart A click here * 2563 Out of Airstream fire door. Square or rectangular for vertical mount only. Maximum dimension 48w, 41h. For damper free area chart B click here * 2565 Round fire door for vertical mount only. Available 4" thru 40" round. * UL and California State Fire Marshall approved * 2" thinline frame *