Apparatus for water supply and sanitary purposes, sanitary installations and devices; Toilets, floor mounted toilets, wall hung toilets, shower toilets, toilet bowls, urinals, bidets, toilet seats, sanitary covers for toilet seats; Metal frames for sanitary apparatus, metal building materials, tubes, pipes and hoses, and parts therefor including valves of metal; water flushing installations, namely, Flushing apparatus, flush tanks for toilets and urinals, flushing apparatus for bathrooms, built-in flushing apparatus; Flush plates and buttons, disinfectant and cleaning substance dispensers and dosing devices for toilets and water flushing installations; Pre wall and back to wall installations and elements, consisting of covers and frameworks being parts for sanitary installations, in which sanitary pipes and/or heating pipes and water flushing installations and parts for sanitary installations are fitted; Sanitary modules, installation frames and systems for sanitary equipment; Parts and fittings for sanitary systems and installation frames for sanitary systems; Water saving toilets, toilet bowls with integrated bidet water jets, parts and fittings for all the aforesaid goods; heating apparatus for bathrooms; drying apparatus systems and refrigerating systems