MR COOL Universal Series DIY GEN 3 24,000-36,000 BTU 18 SEER Heat Pump Air Conditioner SystemUniversal Series Up to 20 SEER DC Inverter Unitary The MRCOOL Universal Unitary Heat Pump system is an easy to install, full size air handler with a slim condenser, suitable for most 2 3 ton applications. This system is incredibly flexible, combining the ultimate in ducted comfort and easy DIY installation. The 3 ton condenser can be field converted to a 2 ton with a different dip switch setting. The quick connect fittings on the condenser and air