Electric beverage heaters; Electrostatic water treatment apparatus; Filtering units for water filtering and producing potable water for domestic use; Filters for fluids, namely, for water and area-water solutions; Filters, heaters and pumps sold in combination for use in swimming pools and hot tubs; Flow restrictors for reverse osmosis water purification units; Hot water heating installations; Kettles, electric; Sewage purification apparatus; Strainers for water lines; Water conservation plumbing fixtures, namely, faucets, aerators, showerheads and water saving toilets; Water filtering apparatus; Water filtration and purification units and replacement cartridges and filters therefor; Water heaters; Water purification machines; Water purifying apparatus and machines; 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, ultraviolet sterilization units