Hayward 2" PVC Ball Valve Soc/Thd EPDM (TB1200STE) NuWhirl An O-ring is useful because

An O-ring is useful because it helps maintain dependable leak protection between connected components while supporting a cleaner reassembly

the panel can become harder to read and less intuitive to use

making it an important working component behind the visible face of the assembly

and FC-9840 reference give this part practical value because DE components work best when the replacement matches the original grid layout and connection style closely

Hayward 2" PVC Ball Valve Soc/Thd EPDM (TB1200STE) NuWhirl An O-ring is useful becauseThe Hayward TB1200STE PVC ball valve is designed for compatible plumbing control applications and features 2 inch socket and threaded connection styles with EPDM sealing material. A valve like this is useful because it provides dependable shutoff control while offering practical flexibility between solvent weld and threaded installation formats. Combination socket thread valves can be especially useful in systems where service accessibility and