Fuel Filter, Spin-On, Length 5 9/32 In, Outside Dia 3 25/32 In, Thread Pitch 1-14 RestrictionsNote: More filters are available on DrillSpot.com . FiltersFuelFuel/Water Separators feature a unique design with an all-metal, self-venting drain, eliminating the need to separately vent the fuel system prior to draining. Threaded and tube-type fittings allow easy installation in metal or rubber fuel lines.