Maytronics 9995269-R1 Impeller with Screw, Dolphin 3001, 2002, 2x2, Deluxe 3, Wave 50/100 Robotic Pool Cleaners, Yellow, This is made in a 3 blade propeller shape with a small hole for the screw.

 

For Use With: Dolphin Advantage, 3001, 2002, 2X2, HD, Enduro 21R, Pro , Enduro 11R, PROX2, Commander, Sprite, Interactive, Orion, Pro RC, Advantage RC, Explorer, DX3, DX4, DX5, Wave 100, Deluxe 3, Orion II, PROX2, M3, DX4, Wave 50, Apollo, Endeavor, Atlantis, Saturn, Primal.