The Platypus GravityWorks Replacement Water Reservoir Kit makes it easy to change out worn-out or damaged reservoirs or conveniently adapt the capacity of an existing GravityWorks system to meet the needs of any trip. The kit includes a Dirty and Clean reservoir with quick-disconnect fitting. Available in two sizes: the 6.0 Liter kit measures 19.5x10 inches and weighs 6.6 ounces, and the 4.0 Liter measures 15 x 8 inches and weighs 6 ounces. Limited lifetime warranty. Made in the USA.