PROLUBE 44920 QUICK CONNECT ADAPTER, NARROW NEEDLE NOSE ADAPTER, 1000 PSI CONNECT TO A GREASE GUN WITH A SNAP; A SIMPLE AND EFFECTIVE SYSTEM THAT RENDERS VERSATILITY TO GREASE GUNS. FOR PUSH ON GREASING OF RECESSED FITTINGS WHERE OBSTRUCTIONS WOULD NOT PERMIT THE USE OF A REGULAR HYDRAULIC COUPLER. ADAPTER TIP: 1/4″; RECESSED LENGTH: 3-1/2″. 1000 PSI. SUITABLE FOR HAND OPERATED GREASE GUNS ONLY; PART OF THE PROLUBE “QUICK DISCONNECT SYSTEM”.