Wratten filter is a combination of two filters cut to size and calibrated; reusable, disposable; to detect particles in fuel samples
NSN 6685-01-626-6204
NSN 6620-01-432-7032
NSN 5905-01-097-2720
NSN 6620-01-392-6180
NSN 6685-00-631-3549
NSN 5895-01-640-7432
NSN 5999-01-075-6165
NSN 6650-01-552-1397
NSN 6145-01-310-6889
NSN 7035-00-753-0695
NSN 5855-01-467-0128
NSN 5975-01-383-8991