Hayward SPX3021B Diffuser
Part Number: SPX3021B
Description
A genuine replacement diffuser for Hayward Super II and RS series pumps manufactured after 1990 with 2.0, 2.5 and 3.0 HP ratings. It helps optimize water flow into the impeller for improved efficiency and performance.
Compatibility & Fitment
- Fits Hayward Super II (SP3000 series) and RS series pumps built after 1990 with 2, 2.5 or 3 HP motors.
- Use when the existing diffuser is cracked, worn, or causing loss of flow, noise, or reduced pump performance.
- Direct replacement for systems originally equipped with part number SPX3021B.
Features & Specifications
- Precision-molded for optimum fit-and-flow in the Hayward Super II pump housing.
- Improves hydraulic efficiency by correctly channeling water into the impeller.
- Constructed of durable polymer material suitable for pool water environments.
- Dimensions: approximately 6-7/8″ × 3-1/2″.
Installation Notes
Turn off power and lock out the circuit. Remove the pump housing and impeller to access the diffuser. Remove the old diffuser and clean the sealing surfaces. Install the new SPX3021B diffuser, reposition the impeller and reassemble the pump. Restore power and verify normal operation and flow.
Maintenance Tip
Inspect the diffuser during each service interval for cracks, wear or flow irregularities. If flow drops, pressure increases or the diffuser is damaged, replace it to maintain pump performance and longevity.
