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.

Rubber caps keep dirt and moisture out of brake caliper bleeder screw fittings and Grease Zerks. Includes a Keeper Leash to prevent the loss of cap during service. Fits all common size bleeders screws and zerks. Has inner rib to help secure cap and keep it in place.

Keeps Bleeder Screws Free From Dirt And Moisture
Keeps Dirt And Build-up From Forming On Grease Zerks
Keeper Leash To Keep Cap From Being Lost During Service (Keeper Leash must be cut off to use with standard Grease Zerks)
Inner Rib To Keep Cap Securely Fastened
Soft Rubber For Perfect Fit
Keeps Bleeder Screws Free From Dirt And Moisture
Keeps Dirt And Build-up From Forming On Grease Zerks
Keeper Leash To Keep Cap From Being Lost During Service (Keeper Leash must be cut off to use with standard Grease Zerks)
Inner Rib To Keep Cap Securely Fastened
Soft Rubber For Perfect Fit

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(25 Pack) Brake Bleeder Screw Caps Grease Zerk Fitting Cap Rubber Dust Cover with Keeper;