Pentair Paragon Stark 3-Way 4" Valve w/Hole Diaphragm (B4740) handrailsladders Useful for routine treatment needs

Useful for routine treatment needs where a larger bottle is preferred

Replacing it can help restore the pump’s hydraulic performance and improve the quality of the repair

or completely unresponsive to pressure changes

and this Herga Electric version is a hard 1-5/16 inch diameter design using the 6470-ZZAB reference

and muffler configuration adds value by preserving a more complete operating arrangement

Pentair Paragon Stark 3-Way 4" Valve w/Hole Diaphragm (B4740) handrailsladders Useful for routine treatment needsFor 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