Water filtration and purification units and replacement cartridges and filters therefor; Waste water purification apparatus, installations and tanks; Separators for the cleaning and purification of liquids; Gas injectors for disbursing solids and/or liquids for purification and sterilization purposes; water filters; filtration units, namely, water filtering units for commercial and industrial use; filter cartridges, filter housings and parts thereof for use with water filtration and purificat...

Scientific instruments for measuring fluorescence, namely submersible fluorometers