Steel Blade Double Deflection Diffuser 934-20X12 Finish:Designer Color - Bronze Square to round 2" collar

Square to round 2" collar with roll formed retention bead

For evaporative coolers or central blower systems

904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 6" Duct Opening   (front blades parallel to shortest dimension)

T-Bar Modular Core Diffuser with Round Collar 18-20

904 - Double Deflection Adjustable Aluminum Blade Grille For a 14" x 10" Duct Opening (front blades parallel to shortest dimension)

Steel Blade Double Deflection Diffuser 934-20X12 Finish:Designer Color - Bronze Square to round 2" collarStandard 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