Operated by depressing the pedal, the G-Gun Foot-Operated Grease Pump delivers 3cc of lubricant at 9,000 psi. Lifting the pedal back up returns the remaining grease in the 10-foot hose back into the canister, thus eliminating dribble/mess and extending coupler and nipple life. Foot operation allows for one-hand or one-man operation, although the pedal can be hand-pumped if underneath low machinery. All moving parts are inside the 17.5-pound-capacity canister and are continually lubricated by the grease. The clip-on lid keeps out rain and dust, and the handle hinges away for easy re-filling.