Ever have trouble drawing water out of your hydration system With Geigerrigs 1.5L Hydration Engine, youre able to pressurize it to your liking, and the cooling water flows effortlessly into your mouth. Give the Power Bulb a few squeezes and then bite the water tubes for easy refreshment. The filter-ready reservoir features a wide-mouth opening for quick refills and easy cleaning. Hydrapak Slide Top provides a strong seal for leak-free performance while the system is pressurized. Quick-release valves disconnect tubes. Reversible for cleaning and top-shelf dishwasher safe. BPA- and phthalate-free. Capacity:1.5 liters/50 oz. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Hydration Packs.