Electronic controllers for use in measuring, initiating, and controlling regeneration and backwash cycles for water treatment equipment; control valves for regulating the flow of water in water treatment systems; control valves for regulating the flow of water in water conditioning and water filtration equipment; water treatment systems comprised of meters, timers, brine valves, air check valves, reverse osmosis filters, control valves, housings therefor, and parts therefor; electrical control apparatus for controlling valves in fluid handling and fluid treatment systems, namely, electro-mechanical cycle timers, electro-mechanical pilot valve controllers, and electronic programmable time controllers; electronic water hardness sensing controls, namely, sensors; meters for measuring rate of flow of fluids; water meters; automatic control valves for fluid handling and fluid treatment systems, namely, electric motor operated valves, diaphragm operated valves, solenoid operated valves, pressure regulating valves, and check valves; water-treating apparatus, namely, water meters, timers, and control valves for regulating the flow of water in water treatment systems and parts therefor; water meter controls for water treatment systems

Water treatment equipment, namely, water filtration apparatus and reverse osmosis units; filtering units, namely, water filters; pressure water treatment vessels and water treatment tanks for use in water treatment in industrial, commercial, and residential settings; water filtering units and cartridge filter housings for use in the filtration of water in residential, commercial, industrial, and food service applications, namely, for water treatment and producing potable water; water treatment equipment, namely, water softening, conditioning, and reverse osmosis units; water softening units; water filtering units and replacement filter cartridges therefor for domestic use, commercial use, and industrial use; waste water purification units; domestic water purifying units for potable water; commercial water purifying units for potable water; water filters, namely, media filters and depth filters for removing sediments, iron, sulfur, tastes, and odors from water; reverse osmosis water purification units; water filtration and purification units; residential water system pressure tanks for use in water treatment systems; pressure tanks for reverse osmosis water treating systems

Non-metal fluid storage tanks, namely, fiberwound pressure tanks for holding and pressurizing water within water systems; fiber-reinforced plastic containers for commercial use, namely, for water conditioning and water filtration