Quick Connecting Tube Fittings produced by Ningbo Pneumatic Technical Expert Co., Ltd. is offered in very low prices and promises to deliver high performance in assigned jobs. The product is made up of stainless steel and brass. The covering of chrome makes it rust resistant and has some quantity of polyurethane. Available in various designs and dimensions product is versatile for all kinds of fittings. Quick Connecting Tube Fittings are very easy to connect or disconnect and are easily interchangeable and hence known as instant fittings. Internal gripping ring and O-ring hold the fitting secure and form a tight seal around the outside of the tubing.