Fixed Bar Filter Grille 915FG-36X20 Step Down Ceiling Diffuser back blades parallel to longest

back blades parallel to longest dimension

Step down core designed for 4-way uniform air distribution

4-way reversible door on square sizes

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

Standard Features * Steel construction * Generous free area for quiet operation * Lever operated single-blade damper * Removable face and damper * Tension wings to stabilize damper * Available in 15"

Fixed Bar Filter Grille 915FG-36X20 Step Down Ceiling Diffuser back blades parallel to longestStandard Features * Fixed bar blades parallel to 1st dimension given * . 060 T6 extruded aluminum construction * Bar grille designed to conceal filter * Hand operated lever for easy filter access * Concealed mounting holes * Filter door hinges parallel to longest side * Filter retainers * Removable face for easy cleaning * For 1" filter (not included) * Soft White Options * 915 2 FG 2" filter spacing (filter not included) * 915 TFG T Bar mount *