Shot-Tech nozzle is the version 1 of Shot-TechV2. The head is cast from lightweight aluminum and fits standard, two-inch I.D. (50mm) fittings (2 1/2-inch fittings are also available). The compact, narrow spray confines the mix and reduces segregation. The amount of air introduced determines velocity and is regulated by the nozzle man depending on the distance desired and the type of surface to be sprayed. The tip for Version 1 is made of rubber reducing the weight for the nozzle man and is much smaller, shorter than the V2 model.The Shot-Tech nozzle is more suitable for smaller jobs that requires wet-spraying in constricted locations.