Waterway WET END - SPA, 2 HP 310-1141The Waterway 310 1141 2HP 1. 5 Center Discharge Wet End is designed for 48 pumps, featuring a complete assembly with impeller and seal. This 2. 0 HP wet end ensures efficient water flow with its 1. 5 suction and center discharge. Ideal for spa applications, it measures 2 3 8 outside diameter for seamless compatibility. Waterway, a trusted name since 1987, prioritizes long term health and well being through superior water filtration solutions.