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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
Standard Features * Airflow can be adjusted to 1
Adjustable steel curved blades
remove the two center cones as a unit and reposition the six screws
904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 14" Duct Opening (front blades parallel to shortest dimension)
904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 6" Duct Opening (front blades parallel to shortest dimension)
Parallel Volume Damper Low Leak 3000PLL-70X12 Step Down Ceiling Diffuser Standard Features * Airflow canh3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3. Options * 3000 PLL Low Leak Air Control
