Pentair MasterTemp Service Side Panel (42002-0039Z) pleatco Verify valve model and part

Verify valve model and part number before ordering

Replacement trap ring for Hayward NorthStar SP4000 pumps

The 2 psi setting and SPNO configuration give this part practical value because heater pressure switches work best when the replacement matches the original triggering characteristics rather than serving as a generic substitute

Using the correct OEM cartridge helps maintain the intended fit inside the filter housing and supports proper water flow through the media

Pentair MasterTemp Service Side Panel (42002-0039Z) pleatco Verify valve model and partKeep the repair centered on the right component with this MasterTemp Service Side Panel. It is helps restore the exterior or internal enclosure area on compatible MasterTemp and Max E Therm heaters. These parts protect surrounding components, direct heat or airflow where intended, and help return the heater to a cleaner, properly assembled condition after repair. Always compare the existing part, equipment label, installation date notes, and part