Pay in 4 interest-free payments of $180.00 Learn more
Ships within 48 hours · Estimated delivery Oct 11 - Oct 16
Square collar designed for a 20” × 20”
To adjust diffuser
stair risers
Flush core and frame provides smooth surface
Minimum size is 4"x4"
Parallel Volume Damper Low Leak 3000PLL-50X14 Commercial 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
