Hayward S360 Bulkhead Pre-1999 (SX311F) couplings the system can no longer

the system can no longer provide the steady filtration support it should

Fits compatible EC40

A secure trap ring is critical for keeping the pump strainer lid properly seated on compatible Hayward NorthStar SP4000 pump assemblies

more reliable operating condition

Hayward S360 Bulkhead Pre-1999 (SX311F) couplings the system can no longerThis pre 1999 bulkhead fitting is intended for compatible Hayward S360 sand filter systems that require the earlier style connection component. Bulkhead fittings are critical sealing and plumbing transition points, so correct fitment matters during filter repairs. Use this part when servicing older equipment where the existing bulkhead is cracked, leaking, or damaged during disassembly. It helps maintain the filters plumbing integrity and supports a