Pentair Max-E-Therm Control Panel Cover Retainer Cap (77707-0009) deltauv supporting more dependable startup behavior

supporting more dependable startup behavior in the heater

It is a practical choice when tank-lid sealing is part of completing a more thorough and dependable service job

A cartridge like this is useful because it helps restore filtration capacity while preserving the dimensional fit needed by the existing filter housing

Use part number SPX1600TRA for accurate matching

properly assembled condition after repair

Pentair Max-E-Therm Control Panel Cover Retainer Cap (77707-0009) deltauv supporting more dependable startup behaviorSecure the control panel cover on compatible Max E Therm heaters with this retainer cap. Small hardware pieces like this can make a noticeable difference when the cover no longer stays aligned or seated, especially on outdoor heaters exposed to sun, moisture, and regular handling. This replacement is useful during panel service, cosmetic repairs, or heater restoration work where the cover hardware is incomplete. Replacing the correct cap can help