ecoSAVER 20 foot Solar Heating Panel System One 20 foot panel heats up to 15 foot by 30 foot oval or rectangular in ground pool or up to 24 foot round above ground pool Flexible ldpe material is durable yet easy and fast to unroll and the twist-connect fittings allow quick and easy installation Modular design; install one or more panel system now and add on later for even more free heat ecoSAVER solar panels are 20 percent wider than most other solar panels for more free heat Optional accessories available; roof mount kit, diverter valve kit and intex pool adapter kit