Hayward Super II Pool Pump Diffuser SPX3021B Replacement Two and a Half Inch balancing basics Improved overall water clarity

Improved overall water clarity

Using the salt cell stand is straightforward:

and standard 56Y mounting make it a practical replacement

Upgrade your Pro Logic Aqua Plus setup—shop now to optimize pool chemistry

Hayward Super II Pool Pump Diffuser SPX3021B Replacement Two and a Half Inch balancing basics Improved overall water clarityHayward SPX3021B Diffuser for Super II Pool Pump 2. 5 Inch Replacement Intro Restore peak flow and filtration with the Hayward SPX3021B diffuser, a purpose built replacement for the Hayward Super II pool pump. Designed for 2. 5 inch connections, this diffuser preserves the pumps flow dynamics and helps maintain consistent pressure across the filter. OEM grade construction ensures precise fit, reliable operation, and long term durability, so you can