High Voltage (HV) output: Timeclock Override (model GL-235-LV-HV only) The GL-235 can also be used to override the filter pump timer. This is very important if recirculate freeze protection or nocturnal cooling functions are being used. Also, this function can be used on systems where the system should operate whenever solar heat is available, regardless of the timer
settings. The HV relay will operate approximately 30 seconds after the LV relay.
$245 + $55 Goldline Pool Solar Heater Control link
$645 + 216 For a 4 - 4x12 system with mounting hardware and system kit is - $645.00 Shipping to Canada with all taxes, fees, duties, and brokerage is $216.00
Goldline solar controller is $249.00 + $55.00 shipping with all fees paid