This compact air regulator is designed for use with air tools. It is fitted with a standard 1/4" BSP thread, which is suitable for most pneumatic tools. The 33mm diameter pressure gauge is dual marked with psi and bar. It is lightweight and easy to install and maintain for use. Features and BenefitsCompact air regulator for use with air toolsFitted with a standard 1/4" BSP thread suitable for most pneumatic tools33mm diameter gauge - dual marked with psi and barLightweight and compact design. Easy to install and maintain Specifications Max. inlet pressure: 140psi Gauge diameter: 33mm Weight: 108g Contents 1 x 1/4" BSP On-Gun Air Regulator and Gauge, 140psi