The Zodiac Wahoo only has one operational moving part-the diaphragm. No gears, wheels or flappers means simple operation which ensures peak performance, maximum power and low-cost maintenance. Automatically removes dirt, debris, bugs, twigs, leaves, sand and even pebbles. FlowKeeper Valve-compact, self-adjusting flow control valve-automatically regulates water flow, ensuring peak performance even with lower horsepower pumps. Please scroll down to see the full list of parts and accessories for this cleaner.