This is a Maytronics Diagnostic Basic Bottom Lid Spring used on the diagnostic Maytronics cleaners. Some of the cleaners include: DX3, DX4, DX5, DX6, Orion, Orion II, Supreme M3, Dolphin Nautilus, Apollo, Endeavor, Atlantis, Triton, Edge, Wave 75, Prowler 820/830, Quest, Discovery, Saturn.








