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Product Description

END GREASING FRUSTRATION
The Original LockNLube Grease Coupler
- LOCKS ON, STAYS ON, HANDS-FREE: Grease goes in, not on, the machine. Easily disconnects, even under pressure. No more broken Zerks
- COMPATIBLE WITH ALL GREASE GUNS AND GREASE FITTINGS: Works with all grease guns and manufacturers . Locks on to all Metric and SAE specification Zerk fittings.
The Original LockNLube Grease Coupler!
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Merchant VideoHands-free, no mess, and no wasted grease! Includes a free rebuild kit. Rated to 10,000 PSI. Perfect for recessed fittings. Easily disconnects, even under pressure. No more broken Zerks.

End greasing frustration with the original locking grease coupler!


Locks on-Stays on-Won't leak
Easily disconnects, even under pressure. No more broken Zerks. 1/8" NPT compatible with all grease guns - battery, pneumatic, manual.

Includes a rebuild kit
Easily replace the seal and steel jaws on your LockNLube Grease Coupler. Includes 4 hardened steel jaws and a threaded cone housing the rubber seal.

Works on all Zerk fittings
Patented Locking Technology (US Patent #8955544) means grease goes in, not on, the machine!

Available in an XL Version
The LockNLube Grease Couler XL (GC81042) has a 2" longer barrel for those deeply recessed fittings!
Key Specs
MAX PRESSURE | 10,000 psi (690 Bar). Locks on, stays on, won't leak. |
ZERK COMPATIBILITY | The Floating Jaws allows the LockNLube Grease Coupler to adapt to all DIN and SAE specification Zerks (grease nipples). |
COUPLER THREAD | ⅛” NPT female thread compatible with all grease guns - battery, pneumatic, manual |
DIMENSIONS | L: 3½ x W: 5/8 x H: 1⅗ In (L: 88mm x W: 16mm x H: 41 mm) |
DIAMETER (FRONT OF COUPLER) | 5/8 in (16 mm). Fits most recessed grease fittings (Zerks). ~1mm larger than standard coupler |
WEIGHT | 4 oz. (100 grams) |
GREASE GUN COMPATIBILITY | Works with all grease gun types: pneumatic, manual, and electric. |
SEAL | Durable nitrile rubber seal for longevity under high pressure |
LOCK-ON MECHANISM | Four hardened steel jaws are resilient under high pressure. Patent protected. |
PATENT | US Patent #8,955,544 |
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