Polysan acrylic shower trays represent the highest quality in the given segment. They are made of cast acrylic reinforced with fiberglass. The bottom of the tub is reinforced with a DTD plate. Acrylate has a very smooth surface with a minimal possibility of slipping, it dampens the noise of falling water very well and is colourfast. The weight of the tub speaks for its robust construction. The waste siphon is not part of the bathtub.