PCS wet room kits should only be used if you want to tile your wet room. They are outstanding quality and are very popular with both DIYers and trade professionals. The underlay in PCS wet room kits is made from extruded foam. They come with a Dallmer drain and the popular Granfix tanking liquid. These wet room kits are delivered next day when ordered before 12:30. PCS wet room kits are superior wet room kits and are great value for money.