Standard 3-Way Fill Grease Gun, Pistol, Max Operating PSI 6000, Length 17 In, Nozzle Extension 1.5 In, Hose Length 30 In, Features Fully Automatic, Continuous Operation and Variable Speed Trigger, Includes Filler Nipple and Bleeder Valve, Male Air Nipple and Hose Attachment Clip Grease Guns3-Way Fill Air for 16-oz. Bulk or 14-1/2-oz. Cartridge2FRU5 is fully automatic with a variable-speed trigger and excellent grease flow. Advanced pump design eliminates priming problems. Air operating range: 40 to 150 psi. Includes vent valve with filler nipple. 40:1 ratio. 1ZTC5 features 1-shot operation and head filler with filler nipple. Grease cylinder on top improves balance and convenience; reduces fatigue. For use with NLG1 Grade 2 greases. Air input range is 40 to 120 psi. 50:1 ratio. 3APF9 features automatic, continuous grease discharge. Pistol-style handle is fitted with male quick coupler fitting. Variable speed trigger.Air-Operated