Description Reviews Description Rheem 20 x 18 Rectangular bottom mount Zone Damper, 35 second Belimo actuator (3-wire) View AllClose
Add to Cart HD-BM-NA-2018 IOHVAC MSRP: Now: $234.38 Was: 20 x 18 Two-Position Zone - Damper Bottom Mount-No Actuator, 5/8-1/2 Shaft HD-BM-NA-2018
Add to Cart MD-2018-BM IOHVAC MSRP: Now: $276.48 Was: MD Series 20x18 (3) Wire Damper PO/PC MD-2018-BM