Parkers Enterprises can repair a wide variety of bathtubs, shower stalls and shower pans— acrylic, fiberglass, enameled or porcelain-coated steel and composite tubs. Before repairs are made, it is important to determine what type of tub you have.    Types of Tubs Acrylic Tubs Acrylic tubs include Garden Tubs, Soaker Tubs and Jetted Tubs. Manufacturers of these tubs include Kohler and Jacuzzi. Fiberglass Tubs Fiberglass tubs can be a 1-piece tub enclosure unit or a 2-4 piece tub enclosure unit. Enameled or Porcelain-Coated Steel Tubs Enameled or porcelain-coated steel tubs are usually a 1-piece tub unit. Composite Tubs Composite tubs are usually a 1-piece injection-molded unit or can be a 2-4 piece tub enclosure unit.