Source Tactical Exclusive Helix High Flow Bite Valve with Minimal Pressure (Black)

Cylindrical shape requires no special mouth orientation Bite valve - Unique mechanism delivers full flow with just a soft bite 90-degree design allows the tube to be shorter to minimize excess tubing Retreat spring mechanism - Will not leak even under pressure or with prolonged use International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.