Helix Valve: The new mouthpiece is drip-proof and has a water stop tap. The tap is opened by a simple quarter turn. With light pressure, the water flow is activated and flows at a comfortable rate. The integrated spring valve causes the mouthpiece to shut automatically. The Helix Valve is easy to take apart and clean.
Compatible with the Deuter Streamer 2.0L & 3.0L Hydration Reservoirs