The document lists 68 different part numbers for various filters from different manufacturers including JEL, HYTREX, BALDWIN, PARKER, CUNO LATINA, QUINCY, VOKES MICROFELT XL, SUNFIELD, BOLL, INGERSOLL RAND, KOCH FILTERS, HYDAC, AAF, STAUFF, HATENBOER, ITT TREAT, DONALDSON, HANKINSON, HIFI FILTER, FAIREY ARLON, ALCO FILTER, PALL, SULLAIR, MARVEL ENGG. CO., FLEETGUARD, KD FILTER, SPEEDAIRE, PUROLATOR,