This is a Maytronics Screw KA30X8 WN1412 A2. This item works in most of the Dolphin pool cleaners.
Some of the Dolphin cleaners this screw works on are: Advantage, Deluxe, 3001, 2002, 2×2, Heavy-Duty, Pro, Enduro 11R, Pro X2, Commander, Interacrtive, Orion II, Explorer, DX3/DX4, DX5, DX6, Deluxe 4/5, Wave 50/100, Supreme M3, Nautilus, DLX4/5, Apollo, Atlantis, Triton, Edge. (This is not a complete list.)
