This is a LockNLube LockNLube Recessed Fitting Adapter.
A rigid, narrow 3.5” extension for your grease coupler.
Easily reaches Zerk fittings in recessed or confined areas
Tip has a concave cup shape to give some flexibility when positioning on the top of the Zerk fitting
Quick-connect locks into any grease coupler. When used with a LockNLube Grease Coupler a leak-free connection is made between the coupler and the extension
Heavy duty construction built for professional use
For manual grease guns.