Pentair Rainbow 320 Automatic Feeder 1/2" Control Valve (R172086Z) hayward The combined kit format gives

The combined kit format gives this part practical value because pump rebuild work often involves both O-rings and mechanical sealing components rather than a single replacement part

This product is intended for use where the listed Protege model or application matches the existing equipment

5P4-M compatibility give this part practical value because cartridge filters work best when the replacement matches the intended housing and application closely

That helps keep the installation more consistent and service-friendly over time

or showing signs of thermostat wear

Pentair Rainbow 320 Automatic Feeder 1/2" Control Valve (R172086Z) hayward The combined kit format givesThe Rainbow 320 automatic feeder 1 2 inch control valve helps regulate chemical delivery in compatible Pentair feeder installations. Proper valve function is important because sanitizer output needs to be controlled without leaks, binding, or erratic adjustment. If the current valve is difficult to turn, visibly damaged, or no longer providing predictable flow control, this replacement can help bring the feeder back to normal service. It is a targeted