LockNLube Grease Gun Coupler locks onto Zerk fittings. Rated 10,000 PSI. Grease goes in not on the machine. Long-lasting rebuildable tool

Add lubrication to equipment with ease using the LockNLube Grease Coupler (Locks on Like Air Chuck). Once securely in place, it stays attached and doesn’t pop off even when put under pressure. This allows for hands-free and leak-proof operation, so you can perform other tasks while the grease gun coupler does its job. It also opens up sticky, clogged fittings for added convenience. A spare set of jaws and a seal are included for replacing the original parts if they wear out. This grease gun fitting is rated for up to 10,000 PSI and is compatible with manual, cordless and pneumatic grease guns, making it versatile and suitable for a range of applications.
LockNLube Grease Coupler, Locks on Like Air Chuck, for Zerk Grease Fittings:

• Compatible with all grease guns: manual, cordless and pneumatic
• Does not leak, does not pop off under pressure
• Hands-free operation
• Opens most clogged and sticky fittings by delivering pressure to the fitting, not leaking out on the machine
• Fully rebuildable grease gun coupler
• If the seal wears out, replace the seal and jaws with the included spare
• Rated up to 10,000 PSI