PSH - Pump Diffuser for Maxi Pool Pump (Pack of 2) - 4030810R

PSH – Pump Diffuser for Maxi Pool Pump (Pack of 2)

This is a genuine PSH replacement diffuser for the PSH Maxi pool pump, supplied as a pack of two units (exploded-view reference position 58). The diffuser is a critical internal hydraulic component that surrounds the impeller, controlling and directing water flow to maximise pump pressure and circulation efficiency.

How It Works

The diffuser sits between the pump housing and the impeller, funnelling water from the pre-filter into the impeller’s centre, then collecting the high-speed water spun outward by the impeller and channelling it into the pressurised outlet chamber. By converting the impeller’s kinetic energy into stable water pressure, the diffuser ensures smooth, efficient flow with minimal turbulence or energy loss — keeping your filtration system performing at its best.

Compatibility

This diffuser is designed exclusively for the PSH Maxi pool pump range — a high-capacity pump built for medium to large residential and public pools. Always verify your pump model before ordering. Using the correct OEM part ensures precise fit and optimal hydraulic performance; aftermarket alternatives may not match the exact geometry required by the Maxi’s pump housing.

Why Genuine Matters

As an original PSH spare part, this diffuser is manufactured to the same tolerances as the component fitted at the factory. PSH Maxi pump components — including the diffuser — are made from Noryl reinforced with 30% fiberglass, offering excellent chemical and mechanical resistance, including compatibility with salt-chlorinated and seawater pools. Fitting a genuine part protects your pump investment and avoids premature wear caused by poor-fitting substitutes.