The MRCOOL GCIK-CL2T-SM GeoCool Inverter Series 2-ton Closed Loop Installation Kit with Straight Manifold is a ground-loop package for compatible 2-ton geothermal heat pump systems. It includes HDPE loop piping, a two-circuit insulated straight header, Geo-Pulse flow center with single pump, geothermal hose connections, and propylene glycol heat-transfer fluid. https://www.partshnc.com/mrcool-geocool-inverter-series-gcik-cl2t-sm