Aerotech® aluminum tensioner arm for Aerotech® 50" Dragonfly fans, 36" & 48" Grower fans, and 36" - 55" VX fans.
Diagram 1 - Dragonfly fans (part #21)
Diagram 2 - Grower fans (part #12)
Diagram 3 - 36" & 48" VX fans (part #12)
Diagram 4 - 51" & 55" VX fans (part #12)
Replacement for Aerotech part numbers: FH2419 & FH2439