GEERTOP Diercon 5000L Portable Water Purifier 99.9999% REMOVABLE & WASHABLE FILTERS For Camping Outdoors - Long Life Capacity: 50000L. Output: 1L/min. Effortless operation and smooth water outflow: Pressure relief system design is equipped to achieve smooth water outflow within 5 seconds by simply holding down the pressure relief button to make the water level in the purifier rise in high speed while the piston rod is pushed. REMOVABLE AND WASHABLE FILTERS: both of two filters can be replaced and washed. The replacement filters can be bought on Amazon. High cost-effective! Super long life design: All-metal structure, which selects high-strength aluminum alloy as its materials. The 72 consecutive hours salt spray test by Germany TUV SUD shows that this water purifier was non-oxidation, non-corrosion, and it can be used in a variety of harsh environments. Test byinternationalauthority: TestbyGermanyTUVSUDprovesthatthisproductcanfilterout99.9999%of pathogenicbacteria, solubleheavymetalioncontentmeetsthehumandrinkingwaterqualitystandardsofEU98/83/EC,thewaterqualitymeetsthecleanwaterstandardsof EPA.Multi-levelandhierarchicalfilter:particleimpuritylikerust,dirtandotherorganicparticlescanberemoved100%,andmineralsandmicroelement Portable: the size of the product is 47 * 220mm /1.85*8.66in, the weight is 455g / 1 lbs. It is applicable to outdoor training, field operations, picnic, adventure, earthquake and flood rescue.