11 Air conditioning apparatus; air conditioning installations; air cooling apparatus; air reheaters; air purifying apparatus and machines; [ bath fittings, namely, bath screens; bath installations; ] boiler pipes and tubes for heating installations; [ boilers for heating installations; boilers, other than parts of machines, namely, electric boilers, furnace boilers; ] cooling appliances and installations for water; cooling installations for water; cooling installations for liquids; [ expansion tanks for central heating installations; ] fans as parts of air-conditioning installations; fans for air-conditioning apparatus; feeding apparatus for heating boilers, namely, pipes for heating boilers; filters for air conditioning; filters for drinking water; [ fire hydrants; fittings, shaped, for ovens, namely, oven gas igniters; gas boilers; gas burners; heat accumulators; ] heat exchangers, not parts of machines; [ heating apparatus, namely, space heating apparatus, ] floor heating apparatus; [ heating boilers; ] heat pumps; heating installations; [ heating apparatus, electric; ] heating elements; [ heating plates, namely, hot plates; hydrants; ionization apparatus for the treatment of air or water for industrial, commercial or agricultural use; ] plumbing fittings, namely, level controlling valves in tanks; [ mixer taps for water pipes; ] mixing valves for faucets; pipes for heating boilers; pipes as parts of sanitary installations; [ pressure water tanks; radiator caps; radiators; refrigerating cabinets; refrigerating apparatus and machines, namely, refrigerated beverage dispensing units, rapid food chilling units; refrigerators; ] regulating accessories for water [ or gas ] apparatus and pipes; [ regulating and safety accessories for gas apparatus; ] regulating and safety accessories for gas pipes; regulating and safety accessories for water apparatus; safety accessories for water or gas apparatus and pipes; [ sanitary apparatus and installations; solar thermal collectors for heating; solar water heaters; storage water heaters; ] taps in the nature of cocks, spigots and faucets for pipes; taps; thermostatic radiator valves; thermostatic valves as parts of heating installations; ventilation and air-conditioning installations and apparatus; water conduits installations, namely, plastic conduit for plumbing use; [ water distribution installations, namely, decorative water fountains; ] water filtering apparatus; water filtering installations; water filtering units; water filters; water filtration and purification apparatus; water flushing installations, namely, flush levelers [ ; water heaters; water heating apparatus, namely, insulating sleeves for water heaters; water heaters for household purposes; water heaters for industrial purposes; automatic watering installations, namely, irrigation sprinklers; water intake apparatus, namely, water filters; water purification installations; water purifying apparatus and machines; water supply installations, namely, sinks, faucets, water purifiers; water softening apparatus and installations ]