💦 Stay Hydrated Anywhere, Anytime! Water is ready to drink in just 30 minutes. No measuring or special equipment needed. Perfect for camping, travel, and survival situations. Easily fits in backpacks and emergency kits. Saves energy and reduces waste. 3-5 Year Shelf Life Purifies 1 Gallon 17 mg per tablet Ef-Chlor Water Purification Tablets are a portable and efficient solution for ensuring safe drinking water in emergencies, travel, and outdoor adventures. Each tablet purifies 1 gallon of water in just 30 minutes, is lightweight, and has a shelf life of up to 5 years, making it an essential item for any preparedness kit.