Amazon.com: AZUNO Grease Gun Coupler, 2nd Generation Upgraded to 12,000 PSI, Grease Gun Tips Quick Lock and Release, Compatible with All Grease Guns 1/8" NPT Grease Gun Fittings: Automotive
Groz 17.0mm Quick-Lock Grease Coupler - Auto Trail Ltd
Mato Safe-Lock Grease Coupler - Lubrication UK - UK distributors of Memolub lubrication systems manufacturers of single and multipoint automatic lubrication units.
Locking Grease Coupler
Amazon.com: LockNLube Grease Gun Coupler locks onto Zerk fittings. Grease goes in, not on the machine. World's best-selling original locking grease coupler. Rated 10,000 PSI. Long-lasting rebuildable tool.: Home Improvement
Lube Shuttle® safeLOCK: Locking Grease Coupler - AET Systems, Inc.