DIFFUSER, 2 - 5 HP

This diffuser is an internal component of a pool pump that sits just before the impeller. Its main function is to guide and smooth the flow of water entering the impeller — reducing turbulence, optimizing water velocity, and improving hydraulic efficiency. By doing so, it helps the pump draw water in more efficiently and maintain steady flow under load, which supports overall circulation performance. The diffuser is made from durable, pool‑rated materials designed to withstand exposure to water, pool chemicals, and the pressures typical of medium‑ to high‑horsepower pump operation. In short, it’s a key part for ensuring reliable, efficient, and long‑lasting performance when your pool pump runs at 2–5 HP.