Hydroponic growing systems; Hydroponic plant cultivation apparatus sold as a kit; Aeration apparatus; Filters for cleaning air; Apparatus for cleaning air; Air dehumidifiers; Air humidifiers; Air cooling apparatus; Apparatus for fertilizer irrigation; Drip irrigation emitters (irrigation fittings); Irrigation devices (automatic) for horticultural use; Apparatus for lighting; LED lighting apparatus; Temperature control valves (parts of water supply installations); Safety valves for water pipes; Sprinklers (automatic installations) for watering flowers and plants; Irrigating apparatus (automatic) for watering plants; Apparatus for supplying water; Apparatus for the distribution of water; Automatic watering installations