Convenience of One-hand operation for easy Greasing Heavy-duty, Die Cast Head for Durability and Long Life 1/4" NPT Inlet. Outlet : 1/8"NPT. Working Air Pressure of 60-90 PSI Maximum Operating Pressure : 3,000 PSI (205 Bar) Handy 3-way Loading - fill with Standard Cartridge, Suction or Bulk Fill Fully Chrome Plated finish for Maximum Protection against Corrosion Equipped with Air Bleeder Valve to release Trapped Air. Includes Filler Nipple with Ball Check for use with Grease Filler Pump Full-molded Follower for Superior Seal and eliminates Grease Bypass Heavy-duty Follower Spring for Consistent Priming Heavy Gauge Steel Barrel with Wide Band, Non-slip Knurling Posi-lock follower rod with Ergonomically Designed T-handle provides Positive Grip and Easy Filling at any position Outputs 3.5 oz. (100 g) of Grease per 100 Strokes Complete with Four Jaws Hydraulic Coupler, Non-drip Cap, 6" (150 mm) Extension Pipe