Adjustable Diffuser 950-20X6 Residential Registers & Grilles Standard Features * Fixed blade

Standard Features * Fixed blade return air T-Bar lay-in filter grille * Square collar for 20 1/2" x 20 1/2" duct * Hinged removable face * 20" x 20" x 1" filter (not included) * Seismic support holes * Soft White Options * 920 TFG - steel outer frame * 920 2 TFG - 2" filter spacing (filter not included) * No Labor Collar - square to round (2x2 only) * 1x2 (20x8 filter) or 2x4 (20x44 filter) * Satin Anodized Finish available on this product

Standard Features * Stamped curved blades * Field adjustable for positive throws and control of face velocities * Provides uniform air distribution across ceiling or walls * Eight air patterns * All component parts

450 Series Engineering/Performance Data

Standard Features *Surface mount return air grille * 0 fixed blades parallel to longest dimension * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * 937 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

Standard Features * Designed for return or exhaust applications * 3/16" holes on 1/4" staggered centers * Heavy gauge steel * Seismic support holes * 1x2

Adjustable Diffuser 950-20X6 Residential Registers & Grilles Standard Features * Fixed bladeStandard Features Adjustable aluminum airfoil blades oriented for 1 or 2 way airflow pattern Blades parallel to shortest dimension One piece stamped steel frame on most common sizes, alternate frame is extruded aluminum with signature line marks. Lever operated steel multi shutter damper Designed for ceiling or sidewall applications Nylon bushings on adj. blades prevent metal on metal rattle Countersunk mounting holes for flush appearance with color