The new Anti-Condensation Toilet Tank Liner Kit (K836-22) helps prevent water from forming on the outside of a tank. It does this by creating a barrier between the warm outside air and cold water inside the tank in order to keep floors dry and prevent water damage. The product is great for houses on well water that produce very cold water. The liner features closed cell foam material, and an easy to install adhesive backer. The liner measures 16-inches x 48-inches and can be cut down to any size with scissors.