Turbine series filter assemblies are designed to be installed on the vacuum side of the fuel transfer pump for best efficiency and protect precision engine components from dirt, rust, algae, asphaltines, varnishes, and especially water. They remove contaminates from fuel using the following three stage process: Stage One: Separation as fuel enters the filter assembly, it moves through the centrifuge and spins off large solids and water droplets which fall to the bottom of the collection bowl. Stage Two: Coalescing small water droplets bead-up on the surface of the conical baffle and cartridge element. When heavy enough, they too fall to the bottom of the bowl. Stage Three: Filtration proprietary Aquabloc® II cartridge elements repel water and remove contaminants from fuel down to two micron (nominal). They are waterproof and effective longer then water absorbing elements.Turbine series filters are available in sizes to fit any application, are easy to service, are rated for 25psi max pressure, and feature a self-venting water drain. FG & FH models offer a clear, see-thru bowl.