Pentair Paragon Stark 3-Way 4" Valve w/Hole Diaphragm (B4740) airinjectors Helps maintain proper body shape

Helps maintain proper body shape and protection

A replacement filter cartridge helps the filtration system continue removing suspended debris efficiently

A union like this is useful because it restores a serviceable connection point while preserving the original plumbing size and higher-temperature application style

Part RCX70100 for accurate service matching

this valve adapter flange helps restore the fit and function of the related Pentair PacFab assembly

Pentair Paragon Stark 3-Way 4" Valve w/Hole Diaphragm (B4740) airinjectors Helps maintain proper body shapeFor 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