Racor turbine series fuel filter/water separators have been protecting engines from water, dirt, foulants and other contaminants for over 27 years using a patented three-stage process:

Separation: the turbine centrifuge separates solids and "free" water through centrifugal action. Although the turbine has no moving parts, over 30% of the contaminants are removed here
Coalescing: smaller water droplets and solids coalesce on the specially designed conical baffle and fall to the collection bowl
Filtration: engines benefit from near 100% water separation and fuel filtration with Racor's proprietary Aquabloc water repelling media500 MA Dual Turbine Marine Diesel Fuel Filter - with Heat Shields & Selector Valve