The Parker Racor 1000 Series for Generators, Diesel Marine Boat and Turbine Series fuel filter/water separator protects the precision components of your engine from dirt, rust, algae, asphaltenes, varnishes and especially water, which is prevalent in low distillate fuels. Protect the nozzle of the diesel fuel injection pump, reduce wear and avoid blockage, reduce the maintenance cost of the engine, and extend the life of the engine. Contaminants are removed from fuel using the legendary three-stage process described below. How It Works Stage 1 - Separation using the fuel flow, the stationary turbine separates large solids and free water through enhanced centrifugal force. Stage 2 - Coalescing Smaller water droplets and solids coalesce on the conical baffle and fall to the collection bowl. Stage 3 - Filtration Engines will benefit from near 100% water separation and fuel filtration with Racor’s proprietary Aqua-bloc water-repelling media. The replaceable filter is a 30-micron rating.