Filters, heaters and pumps sold in combination for use in swimming pools; Water filtration and purification units and replacement cartridges and filters therefor; Filters for fluids, namely, for water and area-water solutions; Water filtering units for domestic and commercial; Filters for drinking water; Water filtering, producing potable water for domestic use and commercial use; Water filtering units for aquariums; Fibrous filtering media for general industrial use in the purification of ai...