Bestway Flowclear sunscreen keeps the heat/water in and the debris out The sunscreen creates a greenhouse effect which retains the water/heat in the pool while keeping leaves and other debris out of the water.< br />Also the chlorine level stays longer with this protection. Economical and environmentally friendly.

Specifications - PE material - The sun shade uses solar energy to heat the pool water and prevents the heat from disappearing - Minimizes pool debris - Fits 4.57m) Fast Set™ Pools, 4.27m Steel Pro MAX™ Pools, 4.27m Power Steel™ Pools, 3.96m Steel Pro™ pools and 3.96m Power Steel™ pools Includes: A pool sunshade