Installations for water treatment and structural fittings therefor, namely, pipelines and connectors therefor, physical disinfection, physical sanitization and chemical disinfectant devices, filtration systems including reverse osmosis systems and ancillary products for water filtration systems in the nature of disinfection devices for filtration systems, transport carts, caddies and trolleys for portable reverse osmosis systems; water purification installations and components of water purification systems, namely, water filters, water softening units, electrode ionization units, booster pumps, storage tanks, filter tanks, sensor units and activated carbon filters