EM8 Electronic Manual Oil/Antifreeze Meter - Rigid Extension - 1/2 in. - The Graco EM8 is the perfect solution for various companies and industries. Whether you have a small service center or an extensive repair facility, this electronic meter will make your life much easier. It has an 8 GPM flow rate and a large, easy-to-read LCD screen that displays how much liquid is in the tank in both quarts/gallons and pints/liters. Plus, it comes with a robust warranty from Graco so that you can be confident in its quality and performance.