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Hardi 1553 Cone spray nozzle The cone nozzles are used with one of the four swirl plates available for hollow cone and full cone spraying. The hollow cone nozzle can be used for pesticide application on boom sprayers, mistblowers or knapsack sprayers. The Hardi 1553 can also be used without swirl plates for solid stream applications
The difference between the 4 swirl plates is the droplet size.
The blue swirl plate has a very fine droplet spectrum
The grey swirl plate has a fine droplet spectrum
The black swirl plate a medium droplet spectrum
The white swirl plate has a medium droplet spectrum and is giving a full cone spray.