founded in 1992, concentrates on the ultrafiltration membrane research, development, and application. as a professional provider of ultrafiltration membrane, litree has developed kinds of products to meet the market requirements in potable water, industrial process water, and waste water treatment. the products are ultrafilters, modules, and small equipments, applied for household, industries and public.

with decades effort litree owns many patents of membrane and filters. so far our products are well accepted worldwide. the ultrafilters only for household are validated by more than 300,000 customers in china . the elements and modules operating in many large-scale projects worldwide are also in excellent status and showing their advantages.