Pentair GW9013 Center Brush Replacement Kit Kreepy Krauly Great White GW9000 Automatic Pool and Spa Cleaner, Set of 2 Center brush replacement kit Fits Pentair Kreepy Krauly Great White Automatic pool and spa cleaner model GW9000 Comes with set of 2 Measures 4-inch length by 1-1/4-inch width by 1-1/4-inch height