FASS Industrial Series Diesel Fuel System, top-tier aftermarket filtration, engineered for peak performance and longevity. Rated 100 gallons per hour, USA-made, with a 1 million mile/5 year warranty. Offers advanced filtration: 2 Micron rating, built-in water separation, and FASS's patented air/vapor removal. Protects and extends injector life. Our focus on engineering results in motors with under 2% failure rate and unique features. No dedicated fuel return line kit required.