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

Use part number SPX1600TRA for accurate matching

Matching the correct pre-12/2013 application helps preserve fit and original control compatibility

Supports a more complete hydraulic rebuild

Replacing the affected jet helps refresh the spa experience without replacing the entire plumbing assembly when the body and connection style are still serviceable

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