Gooloo via Amazon offers its Gooloo 12-volt 300 PSI Electric Tire Inflator / Air Compressor for $15.99. Coupon code "ZQOIXF5K" cuts it to $11.99. Plus, Prime members get free shipping. That's the best deal today by $4 and tied with our mention from two weeks ago as the lowest price we've seen. It plugs into your car's cigarette lighter socket and can inflate a standard size tire from 0 to 35 PSI in eight minutes. Features include a 300 PSI maximum pressure, 10-foot power cord, and three nozzle adapters. Deal ends July 18.