If you ever need to replace your tube and valve: The Helix Tube Kit fits to all SOURCE Hydration Systems with Source Quick Connect (SQC) and Quick Mate Technology (QMT).
The Helix Valve provides full water flow with just a soft bite. The cylindrical shape requires no special mouth orientation. The retreat spring sealing mechanism is leakproof even after prolonged use and under pressure. The kit includes Helix Valve with dirt shield for protection of the valve from dust and dirt.