Established in 1991,SFFILTER(shuangfa filter) is one of the earliest and most professional manufacturer of filter cartridge in China,Specilized in string wound filter cartridge, PP spun filter cartridge,activated carbon filter cartridge(CTO/GAC),pp pleated filter cartridge,filter bags and variety of stainless steel filters.

Since 2002 we are the only one who can produce filter cartridges according to Japanese industial standards in China. What's more,the 80 inch length filter cartridges make customers have more choices when designing large flow filters.

Quality has...