Parallel Volume Damper Low Leak 3000PLL-30X12 Step Down Ceiling Diffuser ½ × ½ × ½

½ × ½ × ½ Aluminum lattice

Standard Features * Use in applications for installing round without damper * Steel galvaneal construction

2x4 * Soft White

3/4” Wide x 3/4” High square holes

Parallel Volume Damper Low Leak 3000PLL-30X12 Step Down Ceiling Diffuser ½ × ½ × ½h3. 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