THE CLEAN SUN POWERED POOL PAD BY BESTWAY PROVIDES AN ECONOMICAL AND ENVIRONMENTALLY FRIENDLY WAY TO HEAT SWIMMING POOL WATER BY HARNESSING THE ENERGY OF THE SUN. IT IS EASY TO SET UP WITH INCLUDED ADAPTORS COMPATIBLE WITH 3.2 CM AND 3.8 CM HOSES. IT IS COMPATIBLE WITH 2500 GAL FILTER PUMPS AND 2000 GAL SAND FILTERS AND BELOW AND IT WORKS WITH ALL ABOVE GROUND POOLS. THE PAD USES SOLAR POWER TO INCREASE SWIMMING POOL WATER TEMPERATURES BY APPROXIMATELY 3 ~ 5 C (5 ~ 9 F) DEPENDING ON THE WEATH