Parallel Volume Damper Low Leak 3000PLL-46X28 Step Down Ceiling Diffuser Note: Listed Size Is Nominal

Note: Listed Size Is Nominal Duct Opening / Nominal Filter Size

Minimum size is 4"x4"

Square to round 2" collar with roll formed retention bead - available in square sizes only

Standard Features * Return air T-Bar lay-in filter grille for 20" x 20" duct * Removable louvered 20 gauge steel face * 20" x 20" x 1" filter (not included) * Square collar (20x20) * 2x2 panel * Seismic support holes * Soft White Options * Square to round No Labor Collar

700MA Series Engineering/Performance Data

Parallel Volume Damper Low Leak 3000PLL-46X28 Step Down Ceiling Diffuser Note: Listed Size Is Nominalh3. 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