Parallel Blade Volume Damper 3000P-56X20 Residential Registers & Grilles 7/8” Wide x 7/8” High

7/8” Wide x 7/8” High square holes

Steel riveted and metal formed assembly

All steel galvaneal construction

Designed to handle high volumes of air with horizontal flow

Standard Features * Airflow can be adjusted to 1

Parallel Blade Volume Damper 3000P-56X20 Residential Registers & Grilles 7/8” Wide x 7/8” Highh3. 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