Standard Features * Aluminum fixed bar 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 * 915 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
904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 10" Duct Opening (front blades parallel to shortest dimension)
Performance Data With Opposed Blade Damper
14" and 16" Options * Field installable Bowtie Damper (BD) * HL OR - factory installed opposed radial damper (sizes 6"-14") * HL FR - U
Standard Features *Surface mount return air grille * 45 fixed blades parallel to shortest dimension * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * 936 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
Adjustable Curved Blade Diffuser CB20-18X6 Finish:Designer Color - Glossy White Standard Features * Aluminum fixedStandard Features * Adjustable curved blade . 055 T6 extruded aluminum surface mount supply diffuser * Four air patterns: CB10 one way, CB20 two way, CB30 three way, CB40 four way * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Soft White Options * CB40 O recessed screwdriver operated opposed blade damper * Square to round No Labor Collar (square sizes only) * 700 CB and CB T T Bar mount * SCB steel