WearetheprofessionalfiltersmanufactorywhichislocateinGuangDongProvince,China.Becausewenotonlyproducethefilters.wealsosupplythefilterproductionline,machine,moldingtechnology.Soweknowhowtomakingthegoodqualityfilters.ourmonthlyproductioncapacityoffilterscanbearound500,000pieces.wepromiseleakagetestingunderthewaterwithourspin-ontypefilter.