Guangzhou Zhonghang Environmental Technology Co., Ltd is specializing in Recirculating Aquaculture System (RAS), Aquarium and Raw Water Treatment System. We have developed into an integrated water treatment company which combined R&D, manufacture, installation, maintenance and sales together. And we have a group of capable technical personnel in the field of mechanical, electrical, automatic control, water quality monitoring, and aquaculturetechnology and so on.Based on our professional and environmental concept, we will always to design the most economic solution to you, make the largest profits with the smallest investment, and win the wonderful future with you!Main products: PP Fish Tank, Rotary Drum Filter, Protein Skimmer, Biological Filter, UV Sterilizer, Residual Ozone Remover, Degassing&UV Sterilizer Device, Oxygen Generator, Ozone Generator, Sand Filter, Water Pump, Water Monitoring System etc.