Bestsellers 18 Size (in)
View Details
![iO HVAC Controls MD-18 MD Series 18" Round 3 Wire Damper PO/PC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-MDXX_5e8f68ab-3a59-43f9-ab55-e0967ffe4197_medium.jpg?v=1708912733)
MD-18 | MD Series 18" Round 3 Wire Damper PO / PC | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MD-18
Committed to customer satisfaction
as experts in Bestsellers
Recently Viewed
Popular Products
View all →![Siemens 147-2000 Positioning Relay, Pneumatic, Adj Start Point and Span, Rapid Response | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/147-2000_large.jpg?v=1720021388)
147-2000 | Positioning Relay, Pneumatic, Adj Start Point and Span, Rapid Response | Siemens
Brand: Siemens
SKU: 147-2000![Siemens 547-323A RCM FM BAC +/-.25"wc(62.5Pa)0.5%FS | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/547-322B-2__18675.1474097902.1280.1280_0249500b-bb5c-4841-86a5-dc4ca99e17fb_large.jpg?v=1722622317)
547-323A | RCM FM BAC +/-.25"wc(62.5Pa)0.5%FS | Siemens
Brand: Siemens
SKU: 547-323A![Tekmar 564 Invita WiFi Thermostat - White | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/564_large.jpg?v=1720029412)
564 | Invita WiFi Thermostat - White | Tekmar
Brand: Tekmar
SKU: 564![Siemens GVD221.1U Damper Actuator | Spring Return | 120 VAC | On/Off | 200 lb-in | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/GVD221.1U_large.jpg?v=1720094536)
GVD221.1U | Damper Actuator | Spring Return | 120 VAC | On/Off | 200 lb-in | Siemens
Brand: Siemens
SKU: GVD221.1U