G961 Agricultural Spray hose handles a wide range of "wettable powder" type chemicals encountered in fertilizer, insecticide, and herbicide spraying (not designed for aromatic hydrocarbons, e.g. xylene).
G961 is used in nurseries and orchards as well as for roadside spraying and lawn care applications.
As a rule of thumb, if the spray comes from a powder, both G961 and G981 are appropriate to use, but if the spray comes in liquid form, check the ingredients carefully - G981 may be the best choice.