MRCOOL GCIK-CL6T-SM GeoCool 6 Ton Closed Loop Installation Kit is an accessory package designed to support the installation of compatible geothermal HVAC systems. It works by providing essential components for connecting and circulating fluid through a closed geothermal loop, allowing efficient heat transfer between the ground loop and heat pump. Designed for use with compatible MRCOO... https://www.partshnc.com/mrcool-geocool-6-ton-closed-loop-installation-kit-gcik-cl6t-sm