150 Series Big Gun® Sprinklers have a larger nozzle size that allows for wider spacing between sprinklers in system applications. and wider row spacing in applications for spraying. The 150 Series offers the widest range of options and accessories in its class. There are full systems, circular models and various equipment for injection routes. (including adjustable models) according to different nozzle styles And a special coating is added to help deliver water, nothing the 150 Series can't do.