Pentair GW9004 Oscillator with Seals Replacement Automatic Pool and Spa Cleaner Oscillator replacement Fits Pentair Kreepy Krauly Lil Shark automatic pool and spa cleaner Also fits Pentair Kreepy Krauly Great White automatic pool and spa cleaner Includes 2-seals Measures 3-inch length by 3-inch width by 1/2-inch height