Puribag Adventure Bladder & Filter not only holds water but also offers effective filtration. You can use it with or without the hollow fiber membrane filter, depending on your water source. Easily replace the internal bladder in your existing hydration vest or backpack with this upgraded option that provides filtration capabilities. It can also be used as a standalone water bladder for maximum flexibility.
Featuring advanced filtration technology, the 0.1-micron hollow fiber membrane protects against 99.99% of bacteria, as well as protozoa, parasites, and other waterborne contaminants. Simplify your outdoor adventures by opting for a system that delivers both filtration and storage in one compact solution. This eliminates concerns about packing too much or too little water.
Upgrade your outdoor experience with the Puribag Adventure Bladder—the perfect blend of functionality and convenience for hiking, backpacking, biking, and beyond.

Kit Includes:

• 1x Puribag 2L Adventure Bladder
• 2x Durable Food-grade Plastic Drinking Tube (one for filter use and one for without)
• 1x Hollow Fiber Membrane Straw Filter
• Cleaning syringe

Hollow-fiber membrane filters work by using a semi-permeable membrane to separate fluids based on the size of their particles. The size of the pores in a hollow-fiber membrane determines which particles can pass through.