The Pentair Kreepy Krauly Pool Cleaner comes with one of two vacuum seals. The Pleated seal works with all pool types: concrete, vinyl, fiberglass, and tile. The Starfish seal , shown here, is used exclusively in concrete pools. The Vacuum Seal on your Pentair Kreepy Krauly Cleaner slides along the pool's surface as the Cleaner suck up debris. After time, this seal will wear to the point that it has to be replaced. This guide shows you how easy it is to replace the Pentair Kreepy Krauly Cleaner Vacuum Seal.