CFCB2000-3TX2 - 2 No Pump Circuits
CFCB2000-3GX2 - 2 No Pump Circuits
CFCB2000-3T - 2 Single Circuits (Grundfos 43-100 3-Speed Pumps)
CFCB2000-3M - 2 Single Circuits (Grundfos 26-116 Single-Speed Pumps)
CFCB2000-3G - 2 Single Circuits (Grundfos 26-99 3-Speed Pumps)