This ballast float is designed to use with Pentair Kreepy Krauly, Legend II, Legend 4-Wheel, Legend 3-Wheel pool and spa cleaner. models LL105, LL105, LX 2000, LL505G, LL505GG, LX5000G, LX5000GG and also compatible with Pentair Polaris, Legend Platinum, Legend Platinum Truck Series pool and spa cleaner models LL105PM, LL105PMT.