Pentair Paragon Stark 3-Way 4" Valve w/Hole Diaphragm (B4740) handrailsladders Replacing it can help restore

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

That makes a correct motor replacement a practical and cost-conscious path to restoring system performance

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

The Darlly 80301 filter cartridge is designed for compatible filtration applications and offers 125 square feet of filtration area with 2-1/2 inch top opening

or completely unresponsive to pressure changes

Pentair Paragon Stark 3-Way 4" Valve w/Hole Diaphragm (B4740) handrailsladders Replacing it can help restoreFor 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