The Air-O-Fan "Reverse Fan" GB-38R "Volute Tower" vineyard sprayers out perform, and out last the competition. Other manufacturers have tried to duplicate our towers without success. The "Reverse Fan" models reduce the amount of leaves and dirt that normally plug the fan guard and housing. Fan life in sandy soil vineyards far exceeds conventional fan housings. Serviceability is made easier with larger guards and inspection covers. The amount of controllable air volume enables the operator to spray every other row throughout the growing season in most applications. Controllable air and direct coverage reduces drift and saves time and chemicals. The GB-38R "Reverse Fan" vineyard sprayers combine performance and simplicity, and can be used in both concentrate and dilute applications. The "Reverse Fan" models come standard with our DK turning hitch and are also available with our 2-point turning hitch option, indented tank option for narrow rows, and our Myers© 2-stage centrifugal pump option.