This gas regulator and 8mm, 2 meters delivery pipe is used in a variety of uses.. the major being the connection of gas between the gas cylinder and the cooking burner. .the delivery pipe complies with international ISO standards. uses German technology to create a powerful tough, yet flexible hose pipe. comes in 2 meters length viable for connection over a long length. A pressure regulator is a valve that automatically cuts off the flow of a liquid or gas at a certain pressure. Regulators are used to allow high-pressure fluid supply lines or tanks to be reduced to safe and/or usable pressures for various applications. Effective & Reliable Strong Durable Universal compatible with all gas cylinders.