The Go Berkey™ Kit is the designed for backpacking, hiking, camping, college students, world travel (business or vacation), on your desk at work or hundreds of other activities. The generic Sport Berkey™ portable water filter bottle is perfect for when you are out on the trail and the Go Berkey system works great for passive purification back at the campsite, lodge, etc. The generic Sport Berkey portable water filter bottle can also be used to prime the Black Berkey Purification Element when water pressure isn't available.