Pentair Challenger 345288 Pump 2 HP 230 per 460V - The Challenger High Pressure Pump is a Single Speed Thermoplastic Pump with Closed Impeller. Challenger pool pumps for inground pools are designed specifically for applications requiring higher pressure operation to feed multiple needs beyond pool water circulation, such as spa jets, in-floor cleaning systems and decorative water features like waterfalls and fountains. Pump components are made from custom-molded thermoplastic for superior strength and durability.