[ Steam accumulators; heat accumulators; heat exchangers for heat transfer between mediums; room coolers, namely, air conditioners, swamp coolers, air coolers, air circulators, and fans; cooling installations for water, namely, coolers for cooling water, water coolers, water cooling blocks, radiators, and pumps, water cooling systems; waste water treatment tanks for household purposes;] water supply installations, namely, [ residential water supply systems, ] and commercial water supply systems; [ hydrants; ] water conduits installations, namely, underground water conduits, above-ground water conduits, wastewater conduits, and water pipes; water distribution installations, namely, water distribution systems, pumps, pipes and tubing; [ excretion storage tanks consisting of 3 parts; flushing apparatus, namely, flushing valves and flushing systems; flushing tanks, namely, liquid storage tanks for flushing; electrochemical gas generators; gas scrubber as parts of gas installations; gas condensers other than parts of machines; gas scrubbing apparatus; air purifiers for household purposes; water ionizers for household purposes; electric bath-water purifying apparatus for household purposes; desiccating apparatus for providing various drying conditions; drying apparatus and installations for heating, ventilation systems, air conditioning systems and refrigeration systems; air dryers, air drying apparatus for drying the air in an environment; air sterilizers apparatus for sterilizing the air in an environment; air filtering installations, namely, air filtration systems and air filter; air purifying apparatus; air purifying apparatus and machines; ionization apparatus for the purification of air; electric air deodorizing apparatus; industrial air purifiers; ] industrial-water purifying apparatus; [ dish disinfectant apparatus for industrial purposes; industrial dehumidifiers; steam superheaters for industrial purposes; water desalination plants; clean chambers, namely, sanitary installations; ] water filtering apparatus; [ water softening apparatus; water softening apparatus and installations; ] water purification installations; apparatus for purifying water; water purifying apparatus and machines; [ fumigation apparatus not for medical purposes, namely, fumigation systems for fumigating residential and commercial water treatment areas; electric air deodorizing apparatus not for personal use; ] sterilizers not for medical purposes; disinfectant apparatus, namely, disinfectant systems and disinfectant equipment; [ swimming pools chlorinating units; acetylene generators; oil-scrubbing apparatus, namely, oil scrubbers and oil scrubbing systems; filters for drinking water; ] water purifying apparatus; [ polymerization installations, namely, polymerization plants and polymerization systems; distillers; refining towers for distillation; distillation apparatus; distillation columns; evaporators; steamers for chemical processing; ] water intake apparatus for receiving water from a water supply; purification installations for sewage treatment [, drying apparatus for chemical processing ] ; [ heat exchangers for chemical processing; distillers for chemical processing; evaporators for chemical processing; plumbing fittings, namely, pipe line cocks and spigots; ] water sterilizers; tap-water purifying apparatus [ ; water control devices, namely, pumps, flow control devices, gates, valves, and water level control devices ]