farmerlund
Senior Member
So I found these from lock and lube. Let’s the grease back into the gun. No mess, seem to work great so far.
Pressure Return Valve For Use With Cordless Grease Guns
No more pressure locks! Returns grease to the tube. Releases hose back pressure. The LockNLube Pressure Return Valve allows grease to flow from the hose back to the barrel with just the twist of a knob. No more pressure locks and messy, unsafe disconnections. Eliminates waste and extends coupler...
locknlube.com