Apparatus for heating, ventilating, water supply; sanitary installations, in particular bathtubs, bath linings, sink units, ventilation hoods, fountains, pressure water tanks, shower cubicles, air heating apparatus, air filtering installations, water filtering apparatus; gas burners; regulating and safety accessories for water or gas apparatus and pipes; taps for pipes and pipelines; sanitary apparatus; sinks; sinks; thermostatic valves; water intake apparatus; water-conducting fittings, in particular basin cocks, bib-cocks, water cocks, mixer valves and drain valves and taps; hand-held showers and shower heads and related accessories, namely shower hoses, rods, wall mounts, sanitary installation fittings being parts of sanitary installations, namely inlet and outlet hoses, siphons, nipples, joints for pipes, copper pipes, solder fittings, aerators, flow regulators; water-saving fittings, namely water-saving tap fittings, flow restrictors, water-saving aerators, water-saving flow regulators, shower shut-off valves, wc water savers; showers; shower cubicles; shower heads; handle grips for showers; pipes [parts of sanitary installations]; anti-splash tap nozzles; radiators, electric; sink units; toilets [water-closets]; toilet bowls; toilet seats; water flushing installations; water heaters [apparatus]; hot water boilers; wash-hand basins [parts of sanitary installations]; flushing tanks; water conduits installations; water purification installations; water purifying apparatus and machines; water distribution installations.