First off, it's going to probably weigh a lot less than you old waterlogged one. Depending on which model you choose and what size your spa is, your new cover will weigh anywhere from 35 to 75 pounds.

They are made with two tapered panels of closed cell foam, wrapped in one or two layers of 6-mil polyethylene. Two or more panels are joined together, both with support channels embedded into the edge of the foam panel to provide rigidity across the center of the tub. The two panels are slid into a custom sewn ?bag?, which is zipped up tight around