Hayward® 896584000-037 Pressure Side Pool Cleaner, 4 Wheel, White. Poolvergnuegen is a booster pump-free pressure cleaner that can suit any pool size. Patented features such as self-adjusting turbine vanes ensure maximum power at any flow and effortless debris management along with the patented debris bag with internal sock to prevent debris escape. Robust tire treads and unique venturi suction ports work in concert with programmed steering to ensure easy wall-climbing, obstacle management and maximized pool coverage while delivering the best surface clean.