Goldline control no valve or actuator. Designed for easy automation using goldline 3 way valve and actuator. Temperature and chemical resistant material. This is an original replacement part for the goldline solar controllers. The gl-235 is a differential temperature control for solar heating of pools, spas and hot tubs. This model provides differential control with an adjustable, calibrated water temperature high limit. Automatic nocturnal cooling (for pools that overheat in in hot climates) and recirculate freeze protection functions can be enabled/disabled via internal jumpers. Input power can be either 115 or 240 vac.The item “Goldline Control No Valve Or Actuator” is in sale since Friday, June 20, 2014. This item is in the category “Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Pool Parts & Maintenance\Pool Heaters & Solar Panels”. The seller is “bestpoolbuys” and is located in NY. This item can be shipped to United States and to Canada.