Water filtering installations; water filtering units; water treatment equipments, including, reverse osmosis filtering units; water filtering apparatus (different from machines): filtering units to treat water; waste water purification units; settler apparatus for sewage; industrial waste water purification plants; purification apparatus (Sewage); apparatus for purifying water; float valves (ball cocks); purification installations (Sewage)

Wastewater disposal services (transport); wastewater dumping (transport)