The MRCOOL GCIK-OL2-5-00 is an open-loop installation kit designed for GeoCool Inverter Series 2–5 ton geothermal heat pump systems. It provides the necessary components for connecting the heat pump to an open-loop water source, allowing groundwater to circulate through the system for efficient heat exchange. Used with geothermal heating and cooling equipment, the kit supports reliabl... https://www.partshnc.com/mrcoolgeocool-inverter-series-open-loop-installation-kit-for-2-5-ton-geothermal-heat-pumps-gcik-ol2-5-00