RS Pro Metric One-Touch Fittings. Features and Benefits. One-Touch push to connect configuration allows for an instant tubing connection Useful for piping in confined space, due to its six-angle wrench processing inside Immediate strong engineering plastic (POM) sleeve disconnection by pressing the sleeve then simply removing tube from fitting Fittings are already equipped with Teflon treatment or O-Ring on the thread Nickel plated brass body ensures anti-contamination properties for an extended product life Applicable fluid type, air (no other type of gas or liquid) Working pressure range 0 to 150 psi Working temperature range 0 to 60 °C