PP. For connecting elastic tubing by simply slipping it on hose connectors. Suitable for bottles with GL 45 thread, with green screw cap made of glass fibre reinforced PP, ideal for transferring liquids or gases. Bent hose connectors can be connected to a liquid source or to a pressure or vacuum system and avoid a deviation of the tubing. Straight hose connectors on lower side. For an easy filling or drawing without turbulences. Can be loosened by simply turning the screw cap. Inner part with the assembled tubing does not turn and remains in place.