FASS Fuel Filter HD Series 3 Micron

There are two different series of systems and each series has multiple GPH ratings.  That makes it confusing when finding the correct replacement filter.  If you purchased your FASS system from Huckstorf Diesel, it is most likely a 95 series system.  If you are not sure which series pump system you have, check the numbers on your existing filter before ordering and compare them to the chart.

This is the fuel filter for the HD (formerly 150) series system.  It is rated at 3 microns.