MIL-S-23923 Sprayer And Duster Units, Insecticide, Mist-Dust Blower Type: Ged, 30 To 100 Gal/H Liquid, 30 To 300 Lb/H Dust \(Commercial\)This specification covers a gasoline-engine-driven insecticide sprayer and cluster unit of the mist-dust type, for outdoor distribution of chemicals by means of a high velocity air stream.