LockNLube Grease Gun Coupler locks onto Zerk fittings. Grease goes in, not on the machine. World's best-selling original locking grease coupler. Rated 10,000 PSI. Long-lasting rebuildable tool.

Description

🔧 Lock it, grease it, forget the mess—upgrade your maintenance game!

The LockNLube Grease Gun Coupler is the world’s best-selling locking coupler designed to securely attach to all Zerk fittings. Rated for up to 10,000 PSI, it features a patented leak-proof locking mechanism that frees both hands for efficient greasing. Compatible with all 1/8" NPT grease guns—manual, pneumatic, or battery-powered—and rebuildable with an included spare seal kit, it ensures long-lasting, mess-free maintenance for professional-grade machinery care.