Replacement Controller Board to suit Rheem Part Number 052139
Control Sol Dir Loline Frost PRG
Rheem, Solahart, Vulcan, Edwards Differential controller PCB for electronically frost protected direct heating solar Loline water heaters and Rheem & Solahart solar ready tanks
Please note that the board has changed colour from green to red.
🚚 Special Order Item – Ships in 3-5 Business Days
052081 supersedes 052139 (which superseded 052137)
