QDX series contain QDX-150, QDX-550, QDX-750, QDX-850, QDX-2200, Power from 0.2HP to3.0HP. Max. Head from 6m to32m. Flow from 50L/Min to 850L/Min. Good quality, competitve price. Our products sold to many countries in the world. You could visit our website for more details. Pls feel free to contact me.