On the face of it, the AIRFORCE® MK4 High Pressure Tyre Inflator looks exactly the same as the AIRFORCE® MK4 Tyre Inflator. The big difference is that the AIRFORCE® MK4 High Pressure Tyre Inflator is capable of inflating up to 300 psi (21 bar) making it ideally suited for any transport, mining or industrial application requiring high tyre inflation pressures. The AIRFORCE® MK4 High Pressure Tyre Inflator is a gauge which not only answers the market need for a higher pressure inflator but also provides one which can withstand harsh environments. The 'Made in Sheffield' AIRFORCE® MK4 High Pressure Tyre Inflator is set to become the heavy duty solution for providing safe, cost-effective and trouble-free high pressure tyre inflation with guaranteed accuracy. This in turn will give high pressure tyre users the benefits of extended tyre life, increased fuel economy and improved safety. The reliable and versatile AIRFORCE® MK4 High Pressure Tyre Inflator, with its aluminium die cast body a