Perfect for the shop or keeping your garage stocked, each FASS Fuel Filter Pack contains one (1) (XWS3002XL) Extreme Water Separator and one (1) (PF3001XL) Particulate Filter! Designed with convenience in mind, our new filter packs make it easy to maintain a FASS Fuel System! The XWS3002XL, our new more efficient extreme water separator is rated at 2 micron absolute! Because the filter element traps over 99% of the water, a drain is no longer needed on our water separator. The new XWS-3002XL must be used in conjunction with the PF3001XL, the new filters cannot be used in combination with the FF3003/FF-3010 or FS1001/FS1020. Our new Particulate Filter is rated at 144 microns. The 144 micron Particulate Filter on the suction side will drastically reduce cavitation, increase flow properties, lower the sound output of the FASS System, and removes larger fuel particulates. When replacing the discontinued filters with the new XWS3002XL and PF3001XL, the XWS3002XL will now be placed on the pressure side of the pump and the PF3001XL will be placed on the suction side.