Agricultural irrigation units; Bib cocks; Dripper irrigation systems, comprised of valves, filters, regulators; Irrigation spray nozzles; Irrigation sprinklers; Lawn sprinkler systems comprising pumps, valves and filters; Sprinkler heads for irrigation sprinklers; Valves being parts of lawn sprinkler systems; Water conditioning units; Water treatment equipment, namely, water filtration units; Watering machines for agricultural purposes