Air inlet: 6.35mm (1/4"), working pressure: 0-10 bar, rated flow: 550 l/min<br> <br> High quality material, stable and durable - The body is made of die-cast aluminum alloy and is sturdy and shockproof.The surface is oxidized and corrosion resistant.<br> <br> Precision pressure gauge with metal housing Pressure gauge high quality and precise.<br> <br> Transparent cup: made of pressed polymer.Heat resistant, not easy to age, excellent adhesion.<br> <br> High precision filter element: not easy to corrode and rust, strong filtration ability.It can completely filter impurities and moisture in the gas. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin