On-line wholesale and retail store services featuring water filtration and purification units and replacement cartridges and filters therefor, water filtration and purification units and replacement cartridges and filters therefor for steamers, ice machines, beverage machines, washing machines, hard water, purification cartridges, and scale inhibitors, water filtration bottles sold empty, water purification and filtration apparatus, water purification, sedimentation and filtration apparatus for clarification, thickening and filtration of water, waste water and industrial water, water treatment equipment, namely, water filtration units, water treatment equipment, namely, cartridge filtration units, water treatment equipment, namely, reverse osmosis filtration units