Hayward High Performance Pump Impeller, 1-1/2 HP | SPX1580CH Gallaway The W3S166T is a better

The W3S166T is a better forward-looking choice because it is a newer

Vinyl finishing option for a seamless exterior integration with vinyl siding

it provides durable performance and a clean

This part is a wall-mounted connection point for pool and spa plumbing

The 4-inch PVC body installs inline with standard pool piping

Hayward High Performance Pump Impeller, 1-1/2 HP | SPX1580CH Gallaway The W3S166T is a betterWhat This Part Is Used For The Hayward SPX1580CH is a high performance impeller rated at 1 1 2 HP for compatible pump models. It mounts on the motor shaft inside the wet end and moves water through the circulation system. This component determines flow output based on horsepower rating. Why This Part Matters A worn or incorrect impeller can reduce flow and filtration efficiency. Installing the correct horsepower impeller ensures balanced performance