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SD52 Series Performance Data
Non-standard size collar (available in 6" through 20")
2 position adjustment for heating and cooling seasons
904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 18" Duct Opening (front blades parallel to shortest dimension)
055 T6 extruded aluminum surface mount supply diffuser * Four air patterns: CB10 - one way
Parallel Volume Damper Low Leak 3000PLL-52X30 past 12 months SD52 Series Performance Datah3. 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
