Product Usage: The contact tube connection port for pneumatic piping , also can be used for various purposes depending on the user's condition. Product details: Product name: Slip lock threaded tee pneumatic connector Material: Plastic+brass Circlip: Stainless steel Working medium: Air, vacuum Working pressure:0~1.0Mpa Negative pressure: -100KPa Withstand voltage: 1.5MPa Operating temperature range: -20~80°C Applicable hose: nylon and PU tube Pipe outter diameter: 4mm/6mm/8mm/10mm/12mm Please Note: The size is measured by hands, please allow minor error of measurement. Photo color might be a little different from the actual product due to color display of different monitors.