Water treatment equipment, namely, water filtration units featuring nanofiltration, ultrafiltration, microfiltration, and reverse osmosis; Flow restrictors for reverse osmosis water purification units; membrane modules, namely, water filtration units for removing dissolved and suspended materials from water and wastewater, and replacement cartridges and filters therefor; all of the foregoing excluding housings for machines and drives for machines

Filter materials, namely, plastic or foam for use in manufacture of filters, filter modules and filter membranes, in particular for nanofiltration, ultrafiltration, microfiltration, and reverse osmosis; separation and filtration membranes, namely, plastics in the nature of filtering materials for nanofiltration, ultrafiltration, microfiltration, and reverse osmosis; polymeric membranes for nanofiltration, ultrafiltration, microfiltration, and reverse osmosis; Natural or synthetic polymeric membranes and filtering materials in sheet or roll form for use in manufacture of filtration media; polymeric sheets for use in manufacturing filtration media; porous membranes in sheet form for use in manufacturing filtration media