The Mityvac MV6412A ATF Pneumatic Sealed Automatic Transmission Refill System is a professional-grade tool for fast, accurate fluid dispensing in automotive and industrial settings. It features a 2.5-gallon (10-liter) reservoir and an integrated manual pump, making it ideal for handling transmission fluids, gear oil, lube, and coolant. With a built-in flow control valve for precise management and a quick-change connection system, it streamlines fluid refills across various vehicles and equipment. it is integrated pressure relief valve ensures safe, high-pressure operation, while it is durable construction makes it ideal for workshops, garages, and service centers.