Cylindrical shape requires no special mouth orientation. Unique mechanism delivers full flow with just a soft bite. Will not leak even under pressure or with prolonged use. Build-in bayonet style shut off.
The SOURCE Helix Bite Valve features a 360 degree cylindrical valve with soft bite which eliminates the need for a specific mouth orientation. The retreat spring sealing mechanism is leak proof even under pressure. Matches all our SOURCE Hydration Systems.