Deuter Z Bite Valve
Here's what other sites are saying:
The Deuter Streamer-compatible bite valve will keep the flow rate high and your thirst quenched.
- Altrec Outdoors
This is a replacement for any Deuter or Source hydration resevoir.
- Tahoe Mountain Sports
The Z Bite Valve by Deuter is compatible with Deuter's Streamer bladder. This valve has a high flow rate and keeps you hydrated easily and quickly. An internal mechanical valve keeps the water from coming out and the 90 degree elbow puts the valve directly towards your mouth.