If you've ever struggled to hold a grease coupler in place while trying to apply grease to machinery, you know how frustrating and inefficient it can be. The LockNLube coupler solves this simple but annoying problem by locking onto Zerk fittings and staying put, so you can actually use both hands on your grease gun.
Built to handle up to 10,000 PSI of pressure, this coupler is designed for serious work. It's rated for heavy-duty use and features a patented locking mechanism that ensures it won't leak or come loose during operation. The construction is robust enough to stand up to daily use in workshops, maintenance facilities, and agricultural settings.
Whether you're using Grandpa's old Alemite lever grease gun or the latest battery-powered or pneumatic models, the LockNLube coupler works with all of them. It's compatible with 1/8" NPT connections and works on both SAE and metric Zerk fittings. The coupler comes with a full lineup of adapters to reach any grease fitting on any machine, from small equipment to large industrial machinery.
Operation is simple - just press the thumb lever to open the patented jaws and attach to the Zerk fitting. Release the thumb lever and it locks on tight. Press the thumb lever again to release, even under pressure. Plus, this is the only rebuildable locking coupler on the market, and we include a spare rebuild kit - essentially giving you two couplers for the price of one.
For anyone who regularly greases machinery, the LockNLube coupler isn't just a nice-to-have tool - it's a game-changer for efficiency and cleanliness. By eliminating leaks and allowing both-handed operation, it makes the job faster, easier, and less messy. It's backed by an unconditional 1-year warranty, so you can buy with confidence.
