2" Round 3 Hour Vertical Fire Door 2565-12 Specialty Products Adjustable curved blade diffuser

Adjustable curved blade diffuser

Steel multi-shutter damper

with 60% free area

Standard Features *Surface mount diffuser * Nylon bushings for easy adjustment and quiet setting of steel blades * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Double deflection diffuser * Front blades parallel to shortest dimension * Back blades parallel to longest dimension * All blades adjustable allowing 4-way flow adjustment * Soft White Options * 934 O - with recessed screwdriver operated opposed blade damper * 1333 and 1334 Series - stainless steel double deflection * Tamper proof screws * Standard Color or Design Color Finish available on this product

w/ Lever Operated Opposed Blade Damper

2" Round 3 Hour Vertical Fire Door 2565-12 Specialty Products Adjustable curved blade diffuserh3. 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 *