Hayward Aqua Vac Tiger Shark and SharkVac Impeller | RCX11000Hayward RCX11000 Impeller (Replacement) for Hayward Robotic Pool Cleaners The Hayward RCX11000 is a genuine OEM impeller used in select Hayward robotic pool cleaners. The impeller is a key moving component that helps generate internal water flow for debris pickup and transport. Replace it when your cleaner has weak suction pickup, struggles to climb, sounds louder than normal, or shows signs of impeller wear damage. Fits Compatibility Hayward