... N2 tank, vacuum system, high-pressure tube, digital tyre inflation gun,direct tyre inflation gun. Size: 700 × 650× 1500(mm) Weight: 180kg ... Power system: AC220V 50HZ Nitrogen Generator produce high purity N2 for inflating ... tyres, with inflating with N2, you can get: 1, Longer term stability of the tyre pressure 2, ...