Steel Blade Double Deflection Diffuser 933-12X8 Damper:without Damper back blades parallel to the

back blades parallel to the shortest dimension Extruded aluminum surface mount frame with signature line marks Provides 4-way air flow on one plane Nylon bushings on adj

Opposed Blade Damper standard on 4" widths

Lever operated steel multi-shutter damper

stair risers

Steel multi-shutter damper

Steel Blade Double Deflection Diffuser 933-12X8 Damper:without Damper back blades parallel to theStandard 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 longest dimension * Back blades parallel to shortest dimension * All blades adjustable allowing 4 way flow adjustment * Soft White Options * 933 O with recessed screwdriver operated