This is a Hayward AXV064A Medium Drive Gear for the Medium Turbine on several of Hayward's Automatic Pool Cleaners
They work with existing plumbing
S-601 Series
This is a Hayward Replacement Pressure Cleaner Hose Swivel for Poolvergnuegen 2-Wheel and 4-Wheel Pool Cleaners
It is used with the Pentair Sta-Rite D Series 5 HP Commercial Self Priming Centrifugal Pool Pumps
Dolphin Cleaner Filter Door tube-thickness_.120" This is a Hayward AXV064AThis is a Maytronics Filter Door used on many Dolphin cleaners. These include Dolphin Triton PS, 300i, Active 30i, Quantum, Active 20, Proteus DX4, Mercury, Premium Energy, Discovery M2BIG, T35, T55i, T45, S300, Prowler 930, and Prowler 920 (Pentair) Pool Cleaners.