NEW JECOD (JEBAO) DCT series Pumps - DCT4000/DCT6000/DCT8000/DCT12000/DCT15000. Why are these better then the DT Models? DCT has a High performance motor with innovation electronics and energy saving up to 50% more then DCT. A New 10 Speed Controller. IC electronic detection, automatic power off protection upon no water sensor. Motor protection if rotor is blocked. Super quiet operation. No copper components. Wear resistant ceramic shaft, longer operation life.