LockNLube Grease Gun Coupler for Zerk Fittings: World's Best-Selling, 10,000 PSI Tool

Product Description: Say Goodbye to Greasing Frustration with the Original LockNLube Grease Coupler

Introducing the Original LockNLube Grease Coupler
Experience a hassle-free greasing solution that locks on and stays put, allowing for hands-free application. With the LockNLube coupler, grease goes where it should—inside the machine—rather than creating an unsightly mess outside. Plus, it easily disconnects even under pressure, eliminating the risk of broken Zerks.

Compatibility with All Grease Guns and Fittings
The LockNLube Grease Coupler is designed to be compatible with all grease guns and fittings. It works seamlessly with both Metric and SAE specification Zerk fittings, ensuring no limitations regardless of your equipment. Whether your grease gun is battery-operated, pneumatic, or manual, you can confidently use this coupler without worrying about leaks or disconnect issues.

Hands-Free Operation with Zero Mess
This innovative coupler offers a hands-free approach to greasing, letting you focus on getting the job done without unnecessary cleanup. It comes with a free rebuild kit, allowing you to maintain your coupler over time. Rated to withstand up to 10,000 PSI, it is ideal for both standard and deeply recessed fittings.

Easy Maintenance with Included Rebuild Kit
The LockNLube Grease Coupler is designed for easy maintenance. It comes with a rebuild kit that includes four hardened steel jaws and a threaded cone with a rubber seal. This simplifies the process of replacing these key components, making it easy to keep your coupler performing like new.

Advanced Locking Technology
The patented locking mechanism of the LockNLube Grease Coupler guarantees that grease goes into the machinery, not onto it. The sliding sleeve design creates a secure seal when the jaws are locked onto the Zerk fitting, ensuring no leaks even under high pressure.

Available XL Version for Deeply Recessed Fittings
For those hard-to-reach areas, the LockNLube Grease Coupler XL (GC81042) features a two-inch longer barrel, providing the necessary reach for deeper recessed Zerk fittings.

Key Specifications at a Glance:
- Maximum Pressure: 10,000 PSI (690 Bar)—locks on, stays on, and won’t leak.
- Zerk Compatibility: Flexible floating jaws adapt to all DIN and SAE specification Zerks (grease nipples).
- Coupler Thread: ⅛” NPT female thread, compatible with all grease guns—battery-operated, pneumatic, or manual.
- Dimensions: Length: 3½ inches, Width: 5/8 inches, Height: 1⅗ inches (88mm x 16mm x 41mm).
- Diameter: Front of coupler measures 5/8 inches (16mm) for compatibility with most recessed Zerk fittings, slightly larger than standard couplers.
- Weight: 4 oz. (100 grams).

Sealing and Locking Features
The durable nitrile rubber seal guarantees longevity even under high pressure, while the four hardened steel jaws provide exceptional resilience. This unique design is patented (US Patent #8,955,544) for added assurance of quality.

A Unique Solution for Every Greasing Need
With the LockNLube Grease Coupler, you can finally end your greasing frustrations. No more fighting to line up the coupler, no hands required to hold it in place, and no leaks! This innovative product is designed for every mechanic, DIY enthusiast, or professional in need of a reliable, efficient greasing solution.

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