The Geigerrig Power Bulb pushes the air into your Geigerrig Hydration Engine to build the pressurization. The bulb is resistant to impact and features a pressure release valve and one-way air intake valve for smooth performance. Bullets change to: Direct fit with any Geigerrig Hydration Engine Pressure release valve for controlled depressurization of your engine Durable, impact resistant bulb body One-way air intake valve for smooth performance
