The Thor’s Lightning Rapid 4-Tire Air System allows you to air up and deflate all four tires. The system utilizes high-diameter (1/4") hybrid rubber-PVC hose that works insanely well in cold temperatures, high-flow brass fittings, high-flow lock-on air chucks, and the incredible high-flow Lightning Fast Hammer Manifold. As a result, this is the FASTEST air system on the market. The Thor's Lightning Air System is the perfect companion for any air source- single or dual air compressors and PowerTanks. Once you manage the air pressure on all 4 tires at once, you'll never go back to the old fashioned way!