... for hydroponics 6" HYDROPONIC INLINE EXHAUST AIR CARBON FILTER SCRUBBERConstructed with 52mm thick carbon layer, ... Xinxiang Huaxing Filter Engineering Co.,Ltd is now provided with advanced filters production line,precision testing ... available, such as air filter, water filter, oil filter, carbon filter, acid filter, oil purifier, filter bag, bag filter, filter cartridge , filter equipments etc.Reason ...