The Survival/Emergency Rig includes the Geigerrig 100 oz. Hydration Engine along with an in-line Crypto filter and Aquamira water purification tablets. It begs the question: why have a 50 gallon drum in your basement that you can't carry, that is under 8 feet of flood water, or buried under rubble that once was your home? Instead, you can keep a small, compact GEIGERRIG emergency water system in your car and/or home that you can throw over your shoulder and walk away from the danger.