Compatibility: Diesel, gasoline, kerosine, coolants, hydraulic oils, motor oils, and mineral spirits. 1 Inch NPT: Fuel Meter has female 1 inch NPT threads at inlet and outlet. Flow rate: Accurate within 1% between 5-50 GPM. Capable of recording 999.9 gallons per batch. Powder Coating Finish: Prevents chipping, scratches, and wear, ensuring long-term protection in harsh industrial environments. Shock and Vibration Resistance: Enhanced durability to withstand heavy vibration or impact, which often occurs in industrial or field environments. Waterproof: Water and dust resistance to withstand rugged, outdoor industrial environments. Long Term Totalizer: 7 digit counter tracks total volume transferred over lifetime of meter. We are committed to delivering the highest quality products in every area we serve, setting a new benchmark for quality across the industry. Our unwavering dedication to perfection has driven us to the forefront of technological innovation, ensuring that our products remain unparalleled in the market. Trust in Walston Industrial to exceed your expectations with reliable products built to perform at the highest level.