Apparatus for filtering drinking water; Bath tubs; Bath tubs for sitz baths; Drain structures for use in spas, steam rooms and baths; Fitted liners for baths and showers; Flush handles for toilets; Flush levers; Hand wash basins being parts of sanitary installations; Heating installations; Mixer faucets for water pipes; Shower faucet extensions; Shower and bath cubicles; Shower bases; Shower doors; Shower heads; Shower panels; Shower platforms; Shower stands; Shower trays; Shower tubs; Shower...