High-pressure to high volume with the push of a button! Easy one-hand push button to switch from High Volume to High-Pressure. The Patented 2-piston system maximizes grease pressure or volume when you need it. 8,000 PSI in High Pressure Mode 36 strokes per oz. in High Volume Mode

• Patented 2-Piston Mechanism
• Choice of Top or Front Discharge Port
• Includes the LockNLube Grease Coupler
• Inline hose swivel and 20″ whip hose make reaching any Zerk easier.
• Replacement seal kit doubles the life of your LockNLube Grease Coupler