The MRCOOL GCIK-CL3T-AM GeoCool Inverter Series 3-Ton Closed Loop Installation Kit with Angled Manifold is a geothermal HVAC accessory designed for installing compatible 3-ton GeoCool inverter heat pump systems. It works by providing the manifold and essential connection components needed to circulate heat-transfer fluid efficiently through a closed-loop ground system. Commonly used w... https://www.partshnc.com/mrcool-geocool-inverter-series-3-ton-closed-loop-geothermal-installation-kit-gcik-cl3t-am