Water filtration and purification units and replacement cartridges and filters therefor; Apparatus for filtering drinking water; Air filters for domestic use; Water filtration and purification units and replacement cartridges and filters therefor for refrigerators, icemakers; Filtering units for water filtering; Filters, heaters and pumps sold in combination for use in swimming pools or hot tubs; Water treatment equipment, namely, cartridge filtration units; Reusable capsules, not of paper a...