LockNLube® Grease Coupler

End greasing frustration with the original locking grease coupler! Locks on, stays on, won't leak. Rated up to 10,000 PSI Easily disconnects, even under pressure. No more broken Zerks 1/8" NPT compatible with all grease guns - battery, pneumatic, manual Grease goes in, not on, the machine Works on all Zerk fittings, SAE and metric Available with or without a spare rebuild kit! The LockNLube¨ is the world's only rebuildable grease coupler. Lowest lifetime cost. Patented Locking Technology. US Patent #8955544 As seen on TruckU on the Motortrend Channel!