2" 3 Hour Vertical Mount Fire Door 2561-48X44 Step Down Ceiling Diffuser 1600 Series Engineering/Performance Data

1600 Series Engineering/Performance Data

055 T6 extruded aluminum surface mount supply diffuser * Four air patterns: CB10 - one way

Allows for 2-way airflow adjustment

with color matching Phillips Pozidriv screws

055 T6 aluminum 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 * 908 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 * Fractional

2" 3 Hour Vertical Mount Fire Door 2561-48X44 Step Down Ceiling Diffuser 1600 Series Engineering/Performance Datah3. Standard Features * 2561 Square or rectangular fire door for vertical mount only. Maximum dimension 48w, 49h. For damper free area chart A click here * 2563 Out of Airstream fire door. Square or rectangular for vertical mount only. Maximum dimension 48w, 41h. For damper free area chart B click here * 2565 Round fire door for vertical mount only. Available 4" thru 40" round. * UL and California State Fire Marshall approved * 2" thinline frame *