One touch fitting - Suitable for inactivated gas, liquid and vacuum - Fast installation - Applied to tubes with various materials. - No need of additional tool for installation - Able to detach instantly with the tube - Reusable without lowering the product quality - Actualize leakage rate 0% - Applied to the right purpose by having collets with various colors - Applied to the non-toxic materials. (NSF, KOTRIC) Safety cork It is a safety cork, being built with safety device in order to discharge water in pressing the push button on the central, in backing up the lever, or in pulling doubly. (The product for cold water is the same of the appearance without safety device.) Others 1. Able to provide tubing with various colors and sizes at a low cost. 2. Support part development technology which is applicable for fitting cartridge.