ST-357.1 Orifice size 07 Pink . Rotating nozzle with ceramic insert. The increased tearing action of the rotating spray is ideal for hard surface applications, such as concrete graffiti cleaning or caked on mud on heavy equipment. Improved materials for longer life. Increases cleaning efficiency as much as 200%.Type: ST-357Nozzle orifice: 07 PinkSpray angle 20°Pressure range: 1450 – 3625 psiInlet: 1/4 “F.Housing: brassColor of protective cap: BlackTemperature: 212 °F