Lincoln's lubrication industrial fully automatic pneumatic grease gun is designed with a variable speed trigger that provides excellent grease flow control and the advanced pump design eliminates priming issues. It features pump ratio of 150 pounds per square inch and maximum grease pressure of 6,000 pounds per square inch. The gun's air pressure range is 40- 150 pounds per square inch. It includes 30 inches high-pressure hose with coupler and attachment clip. This gun also features a fully automatic, variable-speed trigger with a continuous operation. It comprises of an accessible check valve assembly and the gun is designed with a superior flow performance. This gun is backed by one year warranty on material and workmanship.