The MRCOOL GCIK-CL4T-SM GeoCool 4 Ton Geothermal Installation Kit is a complete closed-loop ground-source HVAC installation package designed for GeoCool Inverter Series geothermal heat pumps. It includes HDPE ground-loop piping, a four-circuit insulated straight header, a two-pump Geo-Pulse flow center, geothermal hoses with adapters, and propylene glycol heat-transfer fluid. The syst... https://www.partshnc.com/mrcool-geocool-geothermal-installation-kit-gcik-cl4t-sm