Filter medium is the transmission of the piping system for a device indispensable, and its role is the mechanical filter media impurities, in order to protect the pipeline equipment from wear and accessories plug. At present, China’s basically a R406-decontamination, decontamination of the bulky, inconvenient resistance installed, and sewage long time, the high cost, failed to satisfy the needs of users. We plant the light of these issues, and improve production, the development of three categories series of filters, the same basic shape (Y-), all the internal pieces of stainless steel, sturdiness and durability. The small size filters, filter small eyes, small resistance, high efficiency, easy installation maintenance, and low cost, to meet the needs of various channels