Hayward Diffuser | SPX1616B Fire Feature Replacement Part this air control body improves

this air control body improves comfort and efficiency—maintenance-free and easy to use

backed by decades of industry experience

Genuine Hayward weirs support reliable surface cleaning

Introducing the CMP 0-60 PSI Pressure Test Gauge

Hayward Diffuser | SPX1616B Fire Feature Replacement Part this air control body improvesWhat This Part Is Used For The Hayward SPX1616B is a pump diffuser used inside compatible Hayward wet ends. It surrounds the impeller and helps direct water flow efficiently from the impeller into the volute. This part sits between the impeller and housing. Why This Part Matters A cracked or worn diffuser can reduce flow and affect pump efficiency even when the impeller is in good condition. Improper flow guidance can also lead to unusual noise or