In The Swim Bundle - 2 Items: Deluxe Pool Winterizing Closing Chemical Kit Pools up to 15,000 Gallons 4 x 8 ft. Air Pillow Bundle of 2 items-Deluxe Winterizing Chemical Kit and 4 x 8 ft. air pillow Deluxe winterizing kit contains necessary chemicals for closing pools up to 15,000 gallons 4x8 foot 16 gauge vinyl air pillow protects your pool and cover from potential ice damage