11
Decentralised rainwater treatment installations; Sewage treatment installations; Installations for treatment of rainwater; Filters for the treatment of sewage; Filters for the treatment of rainwater; Filter installations for the treatment of sewage; Filter installations for the treatment of rainwater; Filter elements for the treatment of sewage; Filter elements for the treatment of rainwater; Sewage disposal plants; Filter boxes for water purification, specifically For installation in gullies, pipes, tubes, pipe shafts and water drainage channels and water drainage gutters; Filters for industrial and household use; Water filtering units; Strainer-type water filters of metal or plastic, in particular for inserting in gullies; Pipe shafts incorporating water filters, of metal; Pipes incorporating water filters and pipes of metal; Pipe shafts incorporating water filters, not of metal; Conduits for water discharge incorporating water filters, not of metal; Pipes incorporating water filters, not of metal, (for building)
19
Pipe shafts, not of metal; Building and construction materials and elements, not of metal; Drain pipes, not of metal; Drain gullies, not of metal; Sluices [channels], not of metal; Street gutters, not of metal; Plastic trunking; Rigid pipes, not of metal, for building; Pipes of plastic and concrete; Cable ducts made of non-metallic materials; Pipe segments [non-metallic]; Drain pipes, not of metal; Plastic conduits for drainage; Plastic conduits for irrigation; Plastics pipes [rigid] for water; Plastic pipes for plumbing purposes; Plastic water conduits for roofs; Non-metallic conduits for water discharge; Plastic pipes for conveying natural gas; Rigid pipes of plastics [other than parts of sanitary installations]; Rainwater traps and covers (Non-metallic -); Non-metallic water collecting containers, including for sewage and rain water, also water permeable; Storage tanks [structures], not of metal; Drainage pipes and pipelines, not of metal; Drain pipes, not of metal; Non-mechanical infiltration apparatus and drainage cells, in particular for outdoor use, consisting of water-permeable, non-metallic hollow bodies, Especially of plastic