The New Sentry Above Ground 3 piece design has the revolutionary design that uses the STRENTH of our Sentry Inground pool. We have made it so easy to install. One Top Seat panel, one Side Wall and one Wall/Deck Support Brace. That’s the 3 Piece Pool. Just bolt each section together. Factory Powder Coated steel walls make it the srongest pool on the market today. Entertain in style, relax and enjoy. Let a Sentry Above Ground Swimming Pool transform your backyard into a paradise to be enjoyed by you and your family for years to come.