11 Separators for the cleaning and purification of gases and liquids for heating, steam-generating, refrigerating, drying, ventilating, water supply, water treatment, air-conditioning, and sanitary installations and apparatus; Coalescence filters, particle filters, high-pressure, medium-pressure and low-pressure filters, liquid filters, pipe filters and process line filters, gas filters, cyclone filters and other separating filters, filling filters and ventilation filters, full-flow filters and partial-flow filters, multistage filters, return flow filters, tank-integrated filters, drum filters and strip winding filters, bag filters, perforated plate filters and screen filters, offline filters and inline filters and spin-on filters, plastic melt filters, membrane filters, filter units together with draining apparatus, all of the aforesaid for filtering liquids and gases for use in heaters, steam generators, refrigerators, dryers, ventilators, water suppliers, and sanitary apparatus, not being parts of machines; Filter elements, Perforated sheet filter and screen filter elements, gap-type tube filter elements, rheological filter elements, flow filter elements, filter cartridges, filter casings, filter discs, and disc filter elements, Filter mats, Filter pots, filter cloths, filter bags, Filter strips, filter packages and deep filter elements, non-woven fabrics of metal and non-metal fibre for filters, all of the aforesaid for filtering liquids and gases for use in heaters, steam generators, refrigerators, dryers, ventilators, water suppliers, and sanitary apparatus, not being parts of machines; replacement parts for the aforesaid goods