Pentair Max-E-Therm PCB Enclosure, Nat/LP w/Topside (77707-0013) aquasol Part number ST138 helps simplify

Part number ST138 helps simplify replacement matching

Pool Tool part 110 for accurate ordering

Supports proper heater appearance and service condition

8 inch size

It is a small but important part in maintaining a dependable pool or spa heating system

Pentair Max-E-Therm PCB Enclosure, Nat/LP w/Topside (77707-0013) aquasol Part number ST138 helps simplifyProtect the control electronics on select Max E Therm heater configurations with this PCB enclosure for natural gas or LP systems with topside control. The enclosure helps house the control board and related components so they remain positioned and shielded within the heater assembly. This part is useful when the original enclosure has been damaged by age, heat, service work, or exposure. Restoring the enclosure can help improve component organization