Pentair Paragon Stark 3-Way 4" Valve w/Hole Diaphragm (B4740) elbows A properly sealing lid helps

A properly sealing lid helps protect the system from air intrusion and water leaks while supporting normal circulation and filtration operation

5A operating rating

and this Perma Cast version is sized at 3/4 inch and supplied as a 2-pack using the PI-76 reference

Overlays can wear faster than the electronics they cover

Pentair Paragon Stark 3-Way 4" Valve w/Hole Diaphragm (B4740) elbows A properly sealing lid helpsFor repair jobs where the exact component matters, Pentair Paragon Stark 3 Way 4" Valve w Hole Diaphragm helps restore the original assembly without replacing more than necessary. It supports diverter valve function where water direction and internal movement must stay predictable. Keeping the right replacement on hand can reduce downtime during openings, route service, and equipment pad repairs. Confirm compatibility against the equipment model so