Integrated system combining a spin-on fuel filter, fuel water separator and real time water in fuel sensor. Two options: to plug into the NMEA2000 network to show water-in-fuel alerts on your multi-function display, or with indicator light. Electronics in 316SS head, 3/8NPT ports and 1-12UNF threaded spud. The filter element to mount in the filter head, places the water probe, is 10 micron custom formulated paper filter media that removes 99% of free water. Fuel flow rated up to 680 LPH. It is necessary to order the head and separated the filter element.