When out there in the wild, access to drinking water could be the difference between life and death. Water is so important to our daily survival, and that's why we bring you the gravity water filter straw. A much-needed and easy-to-carry filter. The portable water filter straw is composed of capsules that have miniature microscopic filter pores to strain out damaging elements in the water. The outdoor survival filter will protect you from viruses, dirt, bacteria, or diseases that may be in the pre-filtered water. A silicone gasket around the mouthpiece helps create an air-tight backflow for backflushing. Features: Reliable filtering result: 0.1-micron membrane ensures a 99.9% removal rate of bacteria Superior material: FDA approved. Impact-resistant and ultra-light L630 fits in the palm of your hand Lifespan can be extended by backwash TUV and SGS testing reports Great For: Camping Exploring Hiking Fishing Scouting Traveling Military Survival use Emergencies Qualities: Lifesaver Easy to carry Easy to use There for you when you need it Great quality product Includes: Fountain of Youth personal filter Plastic bag connector Hose clip Silicone hose Specifications: Net Weight: 40 g Size: 40 x 136 mm Water Flow: 0.6 L/min Filtration Capacity: 2000 L Filtration Pore Size: 0.1 micron Material: ABS, UF (medical grade), Silicone