Preset Digital Oil Control , For Use With Diesel, Oils with Viscosity In The Range of 10 to 5000 cst, Includes Oil with Swivel, Steel Extension with Non-Drip Tip, Max. Operating Pressure 1,000 psi, Inlet Type FNPT, Inlet Size 1/2 in, Nozzle Operation Automatic, Metered Yes, For Media Type Antifreeze, Automatic Transmission Fluids, Biodiesel, Diesel, Oil WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer, and Di-isodecyl phthalate (DIDP), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. - Nickel (Metallic)