Drinking Water Storage The collapsible water container is made of flexible, lightweight, food grade material. Telescopic pipe is used for changing the angle of water flow Saving Space Space-saving more than 80%, it is perfect for outdoor camping, hiking, fishing and car travel. Easy to Carry The ergonomic and wide handle is designed to decrease hand pressure. It makes it easy to carry the 5.3 gallon water (about 44 pounds). Water Purification System The collapsible water container with unique adaptor combines with gravity water filter. It is easy to build a simple water purification system. How do I build a simple water purification system? Add the water filter connector to build a simple water purification system 3 Different Water Storage Containers in Outdoors Collapsible Water Containers Collapsible Water Bags Water Purification Set Material LDPE, PP, SILICONE Material PA, PET, PP Material LDPE, PP, SILICONE, ULTRAFILTRATION MEMBRANE Feature 1, Food Grade Material 2, Large Capacity 3, Portable Hand Washing Station Feature 1, Food Grade Material 2, Saving Space 3, Ergonomic Handle 4, 1.42 Inches Outlet Feature 1, Food Grade Material 2, Large Capacity 3, Portable Water Purification System