When you shop online for a lightweight, portable water filtration system, trust Berkey Filters’ most portable water purifier yet: the Go Berkey! This product can be used for biking, hiking or can simply follow you to the office or school. Small enough to fit in a limited space, like a backpack and powerful enough to clean water pulled from nearby streams, the Go Berkey kit is optimal for emergency situations and physical activities where you need frequent, fresh, clean water. The Go Berkey Kit INCLUDES the following: a BPA-free Berkey Sport Bottle- which is a light-weight bottle great for long hikes or extended exercise, a stainless steel Go Berkey- made of high-quality AISI 304 stainless steel polished to a high luster, A Black Berkey filter- which is the Go Berkey water filter -that powerfully purifies contaminated water, a complete assembly and maintenance instructions for extending the long life of the product and a nylon carrying case that’s perfect for a limited space! Get Active with the Go Berkey Water Filter. Berkey is superior to many other water filter systems and bottles because it provides an on-the-go microfiltration system that qualifies as purification system — without using harsh chemicals. This means that it filters 99.9% of bacteria and viruses as well as other contaminants like lead.