Features: Relay controlled allows unit to run independently or in parallel with the stock fuel pump - Clear high-impact polycarbonate sight glass for visual inspection of fuel - Helical Spur Gears runs quieter than straight cut gears - "Marine Grade" motor protects against dust and water - Contoured CNC manifold enhances flow - Fuel pressure gauge port - O.E. quality Viton Seals - Typical install is 2 hours - Built in the USA. Relay Controlled: This DFS780 is powered by your ignition (via supplied relay circuit) and can be run independently or in parallel with the stock fuel pump. Clear High-Impact Polycarbonate Sight Glass: Allows visual inspection of fuel. Helical Bronze Spur Gears: Bronze gears more forgiving of contaminants than steel gears. The Helical spur gear design runs quieter than straight cut gears. Billet 6061-T6 Aluminum Manifold: Eliminates porosity concerns with cast aluminum. "Marine Grade" Motor: Protected against dust intrusion and powerful water jets. Plug & Play Installation: Supplied harness attaches directly to battery and utilizes Deutsch weather-proof connectors. No cutting or modifications of the stock fuel lines required. Vehicle can easily be returned to stock. PEEK Bearing Wear Surfaces: The DFS780 spur gears ride on PEEK (Polyether Ether Ketone) bearing surfaces to reduce both noise and wear. Contoured CNC Machining Of Manifold Passages: Enhances flow through the manifold to reduce pressure drop due to flow restrictions. Direct Bolt-on Steel Mounting Bracket: Heavy duty bracket mounts to the frame and utilizes existing hole to secure. Fuel Pressure Gauge Port:1/8" NPT port allows customer to attach an external pressure gauge to monitor fuel pressure. OE Quality Viton Seals: Compatible with diesel and biodiesel fuels.