We offer a true problem-solver with our blocking connection screw fittings, also referred to as locking push-in fittings. These push-in fittings work like a quick coupling, except that they do not need a special coupling plug. It is enough to push a hose into the push-in connection and the media flow is permitted. If the hose is dismantled, the stop fitting closes automatically. Attention: Every insertion results in roughing of the outer surface of the hose. Therefore, these stop screw connections may only be used for occasional coupling.