Home / Agriculture / 3/4″ G Type Kinetic Air Release Valve 3/4″ G Type Kinetic Air Release Valve To remove air bubbles from pipeline. Related products Hydroponic Square Pot 1″ PP Air Release Valve 4″ X 2″ Open Trunking Pipe Socket Floor Woven Plastic (Weed Mat) Plant Shading Net LDPE Tubing Pipe