Today, residential lots offer many landscape challenges. With the superior wall construction of the Radiant Pool you have options. Keystone Series of Radiant pools is suitable for all classes and all budgets. The R-10 insulated walls R-10 resist to the loss of heat from the water more efficiently than any other type of pool wall. The walls are formed of two sheets of aluminum coated with durable acrylic that is resistant to oxidation and corrosion. Their insulated wall panels are incredibly lightweight and slide together easily with their exclusive groove connection system.