This is a brand new, sealed Camelbak Relay water filter, designed to provide fresh and clean water for your household. The filter is designed to fit perfectly with your existing Camelbak model, and is made from high-quality plastic that is both durable and easy to maintain. With a filtration method that uses carbon and charcoal, this filter is capable of removing chlorine and other contaminants from your water, ensuring that it is clean and safe for you and your family to drink.