35 Retail, wholesale and online retail services for active chemical ingredients, chemical compositions for water treatment, chemical products for water cleaning, chemical additives for water disinfection, chemical products for corrosion prevention, chemicals used to prevent scaling, other than for domestic use, antifreeze chemicals, biocides, microbicides for wastewater treatment, water treatment machines, pumps, reverse osmosis pumps, filters (machine parts), cartridges for filtering machines, recorded software for monitoring, control, control, monitoring, analysis and securing of water networks in an industrial site or in a building heated by geothermal energy, electric control boxes, sensors, detectors and monitoring instruments for water networks in an industrial site or in a building heated by geothermal energy, pressure sensors, liquid level sensors, temperature sensors, devices for monitoring water consumption in an industrial site or in a building heated by geothermal energy, safety warning devices for water networks in an industrial site or in a building heated by geothermal energy, devices for monitoring water and electrical energy consumption in an industrial site or in a building heated by geothermal energy, wastewater treatment plants in an industrial site or in a building heated by geothermal energy (purification), equipment for industrial water disinfection, filters for water distribution equipment, osmosis units, boilers, air conditioners, cooling units, heat exchangers, filtration systems for drinking water, fresh water and sea water; information and commercial advice for consumers in the field of water treatment in an industrial site or in a building heated by geothermal energy; information and commercial advice to consumers on the management, treatment and filtration of drinking water, fresh water and sea water