AIR UP OR DOWN IN MINUTES - Quickly Inflate all Four Tires at Once in Just Minutes With This High-Flow Tire Inflation System. Its Efficient Design Saves you Time and Effort, Ensuring Your Tires Reach the Optimal Pressure. EQUALIZE TIRE PRESSURE - This System Automatically Equalizes the Tire Pressure in all Four Tires, Removing the Need to Individually Check and Adjust Each one. It Simplifies the Process and Saves you Time and Stress. SEAMLESS PSI MONITORING - Ensure Optimal Tire Pressure With Ease by Checking and Adjusting PSI Directly From the Manifold, Without Bending Over. The System Includes a Rhino USA Digital Gauge for Accurate Readings Between 1 and 150 psi. *Manual Shut-Off Valve*