LockNLube Grease Gun Coupler XL - Universal Fit - Extra Reach for Recessed Grease Fittings

["LOCKS ON. STAYS ON. WON’T LEAK Patented locking jaws grip the Zerk to create a secure connection that will not pop off under pressure. Enables true hands-free greasing so grease goes into the fitting, not onto your machine.","EXTRA REACH FOR RECESSED FITTINGS Extended 3.5\" reach accesses shielded PTO shafts, U-joints, axles, and other hard-to-reach grease fittings where standard couplers cannot fit.","RATED TO 10,000 PSI Built for demanding shop, fleet, agricultural, and heavy equipment maintenance applications.","ONE-HAND THUMB RELEASE EVEN UNDER PRESSURE Disconnect easily without fighting stuck couplers or damaging grease fittings.","FULLY REBUILDABLE DESIGN Internal components can be replaced to extend service life and reduce replacement cost. Rebuild kit sold separately."]