Powerful 12V Motor - delivers over 8,000 PSI for heavy duty applications. Superior run-time - up to 7 grease cartridges per battery charge. Hose storage and shoulder strap loop - more convenience with less mess. Air Bleeder Valve - priming mechanism for quick flow. Uses M12 XC LITHIUM-ION Battery Pack - 20+ Tools in the M12 Cordless System (Not included) Grease Gun only.