Orochem India Pvt. Ltd offers Guard Column Cartridge Holder. Orochem India Pvt. Ltd, a division of Orochem Technologies Inc., an ISO 9001-2000 certified company supplies medical devices. Guard Column Cartridge Holder is a protection device which is used for analytical and preparative HPLC columns. Guard Column Cartridge Holder function as a filter and absorber of materials that can adversely affect the chemistry of the separation or the lifetime of the column. Their use is highly recommended when injecting anything other than pure filtered standards that elute in a reasonable number [<20] of column volumes.