The Waterco H-Storm/H-Star Impeller 1 HP is designed for replacing worn-out or dilapidated impeller of Hydrostorm and Hydrostar pool pumps of Waterco. This is designed for pumps with 1.0 horsepower capacity. This is a closed impeller made with durable materials and it is located between the motor bracket assembly and the diffuser. It features a sidewall on the two sides which is the top and bottom part of the vanes. This impeller transfer energy from the motor that drives the pump to the fluid being pumped by accelerating the fluid radially outwards from the center of rotation.