I no longer have the equipment that uses this JD SD Polyurea grease. Go to a JD parts website and search for TY6341. There are two unopened tubes and the one in the gun has a little over half left. Each tube of grease is $7/ea.
Also the LockNLube Easy Prime gun. No more mess or failure to push the grease. You just put the orange followers on the underneath side of the grease tube (make sure grease is pushed all the way to top) and you're in business. Has their grease coupler that locks onto the zerk; as well as a swivel on the end. I should have had one of these 20+ years ago! So much easier!
The gun goes for around $108. So new you're looking at $122 minimum. Not including the half full tube in the gun.