This is a Maytronics Dolphin Screw M4X14, MTIL. This part is designed for several of the Dolphin pool cleaners.
The screw is for Dolphin cleaners: Diagnostic Advantage, Deluxe 115V, 3000+, 2002+, 2×2 115V, Heavy-Duty, Pro, Enduro 11R, Pro X2, Commander, Interactive, Plus Battery 230V, Pro X Battery CB, Advantage, Wave 300, DX5 Plus, DX5, Wave 50M, Advantage Plus, Advantage RC Plus, 3001 115V, Evolution X5, 2×2 C6 Plus, C5 CB.
