The Tiltback Legs are compatible with the Aviator Cub/Cub UK, Mach 3 Combo and select BlockDock cabinets (12CB, 12HD, 15).

Additionally, the Tiltback Legs are also compatible with most of the discontinued Aviator lines* (Gen 1 and Gold) as well as the discontinued Steelaire series. 

*The Tiltback Legs are not compatible with the 8" version of the Aviator Gen 1 or Gold combo.