Val-Pak Aqua-Flo A 11020000 1-Phase Brass Pump and Motor 2 HP 230V 60Hz. The A-Series pump is cast from corrosion-resistant bronze and will provide 30 years of service. Aqua-Flo’s A Series open-face impeller is designed to grind up or bypass small pebbles and debris to prevent the impeller from clogging. The A-Series pump will deliver the hassle-free efficient operation you would expect from a bronze pump of this quality.