Add to Cart HD-2420-PO IOHVAC MSRP: Now: $553.39 Was: 24 x 20 Heavy-Duty Zone Damper - Powered Open HD-2420-PO
Add to Cart HD-BM-NA-2420 IOHVAC MSRP: Now: $463.66 Was: 24 x 20 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft HD-BM-NA-2420
Add to Cart HD-NA-2420 IOHVAC MSRP: Now: $463.66 Was: 24 x 20 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft HD-NA-2420
Add to Cart MBD-2420 IOHVAC MSRP: Now: $377.32 Was: iO HVAC Controls Manual Balancing Damper 24 x 20 with locking quad MBD-2420