Filters for drinking water; Filters, heaters and pumps sold in combination for use in swimming pools; Filters made of fiber for water filtration; Industrial air filter machines; Industrial air purifiers; Waste water purification units; Fibrous filtering media for general industrial use in the purification of air and industrial fluids; Water filtering units for domestic, commercial, or industrial use; Metal cylindrical chamber and screen for use in filtering and removing settleable solids from liquid; Water filtering devices, namely, water purification installations for waste water and sewage consisting of curtains and textile fabrics