We offer nickel-plated brass push-in fittings for standard pneumatic applications. These fittings have been designed with a special collet which provides a homogeneous tight on the whole surface of plastic tubes, thus ensuring high reliability and long service life, also after connections and disconnections of the tube are repeated several times. The well-designed BSP parallel (ISO-228) outer thread provides a perfect seal even in less smoothly finished inner threads, thanks to its design and the Teflon seal at the bottom of the thread.