Parallel Volume Damper Low Leak 3000PLL-40X38 Residential Registers & Grilles Square collar designed for a

Square collar designed for a 20” × 20”

055 T6 aluminum surface mount return air grille * 0 fixed blades parallel to longest dimension * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * 907 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

listed Fire-Resistance Diffuser * 700 Series - T-Bar Lay-in Panel * TVB - Thermal Vapor Blanket * Square collar

Blades are parallel to the shortest dimension

Standard Features * Stamped 22 gauge steel curved blade T-Bar lay-in supply diffuser * Field adjustable * Five air patterns: 101 - one way

Parallel Volume Damper Low Leak 3000PLL-40X38 Residential Registers & Grilles Square collar designed for ah3. 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