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LockNLube Locking Grease Gun Coupler, 1/8-Inch NPT, Rated To 10,000 PSI
- Locks ON, Stays on
- Rebuildable Design Included
- Universal Grease Gun Fit
- Fits All Zerk Fittings
$34.99
Price as of Oct 16, 2026, 7:48 AM UTC. Prices and availability are subject to change. The price shown on Amazon at the time of purchase applies.
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Key features
Locks ON, Stays on
Secure lock on grease coupler lets you grease machinery with both hands free. No leaks or mess, making maintenance faster and easier for every job.
Rebuildable Design Included
Comes with a spare rebuild kit for long-lasting use. Get the best lock on grease coupler value with easy maintenance and reliable performance.
Universal Grease Gun Fit
Compatible with all grease guns—manual, battery, or pneumatic. The 1/8 in NPT threaded connection fits most grease gun coupler lock setups.
Fits All Zerk Fittings
Works with SAE and metric Zerk fittings. Quick lock grease gun coupler design reaches tight spots and adapts to any machine for versatile use.
Easy Release Under Pressure
Patented thumb lever opens jaws for fast attachment and removal. Rated up to 10,000 psi for heavy-duty jobs. Covered by a 1-year warranty.

LockNLube Locking Grease Gun Coupler, 1/8-Inch NPT, Rated To 10,000 PSI
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