Steel Blade Grille - Horizontal Fixed Blade 938-30X6 Finish:Designer Color - Cement Gray 904 - Double Deflection Adjustable

904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 10" Duct Opening (front blades parallel to shortest dimension)

3/4" round collar

3 or 4 way air patterns from face * One size fits 6" thru 16" (collar by others) * Soft White

Round ceiling radiation butterfly damper

Tool operated Opposed Blade Damper

Steel Blade Grille - Horizontal Fixed Blade 938-30X6 Finish:Designer Color - Cement Gray 904 - Double Deflection AdjustableStandard Features *Surface mount return air grille * 0 fixed blades parallel to shortest dimension * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Soft White Options * 938 O recessed screwdriver operated opposed blade damper * No Labor Collar (square sizes only) * 900 T T Bar mount * 905 HD reinforced construction * 905 IS insect screen * 1335 1338 Series stainless steel version * Tamper proof screws