iO HVAC Controls MD-1808-BM 18" x 8" Rectangular 2 Position Zone Damper, Bottom-Mount Pivot They feature aggressive teeth for

They feature aggressive teeth for a strong grip when twisting and pulling

Adjustable bright LEDs for better visibility in dark hard to reach locations

and for replacement of closet flanges

High electrical ratings allow operation of most equipment without use of relays or motor starters

iO HVAC Controls MD-1808-BM 18" x 8" Rectangular 2 Position Zone Damper, Bottom-Mount Pivot They feature aggressive teeth foriO HVAC Controls MD 1808 BM 18" x 8" Rectangular 2 Position Zone Damper, Bottom Mount Products typically ship within 1 business day. The MD Series rectangular dampers are extruded aluminum parallel blade dampers complete with a 3 wire, 24 volt, Power Close, Power Open actuator. These dampers are perfect for use with our ESP 400 Static Pressure Control Module and all of our residential zoning systems. These dampers are shipped complete and ready for