LOCKNLUBE Grease Gun Coupler

End greasing frustration with the LockNLube® Grease Coupler—the ultimate solution for leak-free greasing. Compatible with all grease guns and grease fittings, it locks on, stays on, and won't pop off under pressure. That means less mess, and less wasted grease.

With its unique sliding sleeve and thumb lever, the LockNLube® Grease Coupler easily locks its four steel jaws onto the Zerk fitting, creating a secure, leak-proof seal. And when you’re done, a simple press of the thumb lever releases the coupler—even under pressure. The perfect solution to greasing recessed fittings that make removing your coupler a zero-breaking chore.

The LockNLube® Grease Coupler is fully rebuildable. If it ever starts to leak, just replace the seal and jaws, and it’s as good as new. We even include a free rebuild kit with every purchase, and additional kits are available in our store.

It works with all major grease gun brands—Lincoln, Milwaukee, DeWalt, John Deere, Alemite, Pleas, Legacy, and many more—so you know it’s the right fit for your tools.

Ready to experience the difference? CLICK HERE to see video reviews and read customer comments, and get your LockNLube® Grease Coupler today!

• Locks on, stays on, won't leak. Rated up to 10,000 PSI.
• Easily disconnects, even under pressure. No more broken Zerks.
• 1/8" NPT compatible with all grease guns - battery, pneumatic, manual.
• Grease goes in, not on, the machine.
• Works on all Zerk fittings, SAE and metric.
• Includes a rebuild kit! The LockNLube® is the world's only rebuildable grease coupler. Lowest lifetime cost.
• Patented Locking Technology. US Patent #8955544.
• As seen on TruckU on the Motortrend Channel!