Chlorinating units (water purifying apparatus and machines); cooling installations for water; filters for drinking water; heating installations (hot water -); heating installations (water); hot water bottles; irrigation machines (watering machines for agricultural purposes); mixer taps for water pipes; pressure water tanks; regulating accessories for water or gas apparatus and pipes; regulating and safety accessories for water apparatus; safety accessories for water or gas apparatus and pipes; softening apparatus (water -); toilets (water-closets); washers for water taps; water closets; water conduits installations; water distribution installations; water filtering apparatus; water flushing installations; water heaters; water heaters (apparatus); water intake apparatus; water purification installations; water purifying apparatus and machines; water purifying or treatment apparatus, installations and machines, utilizing magnets; water softening apparatus and installations; water sterilizers; water supply installations; watering installations, automatic; watering machines for agricultural purposes; water-pipes for sanitary installations