The purpose of this invention is to maximize the usable area of a typical household bathtub. This invention consists of a three piece plastic unit which is designed to increase the water volume in a standard household bathtub. The three consist of; (I) A moulded plastic bar. FIGURE #I (2) A length of plastic film. FIGURE #2 (3) A moulded plastic overflow extension cup. FIGURE #3 The reason for the items which comprise the unit are: the first two act as splashguards and the third allows maximum water level to be reached.