Fass Water Separator (Removing Emulsified Water) for Fass Titanium Series (95 Series) The Fass FS-2001 is the Replacement Diesel Fuel Filter for all Fass 95 Series Pumps / Titanium Series Pumps The Fass FS-2001 Fuel Filter offers the highest filtration levels available to help preserve the integrity of your fuel system Fass FS-2001 Fuel Filter 3 Micron Fass 95/Titanium Series is the only fuel filter available for this class of pump The Dieselstore.com is an authorized Fass Dealer, so get the maximum out of your product and warranty. We have specialists that can help with advice and installation.