11 Environmental control apparatus, namely, particle activators for use in soil remediation, drinking water treatment, municipal and industrial wastewater treatment; Filters, heaters and pumps sold in combination for use in swimming pools; Separators for the cleaning and purification of liquids; Sewage purification installations; Waste water purification units; Water filtering apparatus; Water filtration apparatus for the deionization of water; Water purification installations; Water purification and filtration apparatus; Water treatment equipment, namely, cartridge filtration units; Water treatment equipment, namely, chemical sterilization units; Water treatment equipment, namely, reverse osmosis filtration units; Water treatment equipment, namely, reverse osmosis units; Water treatment equipment, namely, ultraviolet sterilization units; Water treatment equipment, namely, water filtration units; Water treatment equipment, namely, water filtration units and reverse osmosis units