Hey, We are a professional manufacturer in filter cartridges more than 20 years. And can provide various of filter cartridges,which main to be used in BioPharmaceuticals, Microelectronics, Food and Beverage, Power generation, Petrochemical, Metal processing, Drinking Water treatment, Swimming pool and spa water treatment, Mechanical manufacturing, Automotive, etc. markets. Pls feel free to contact with me if you would like to know more ! Best Regards! Jerson Yang Skype:jerson866 WhatsApp:13543780767