The Air-O-Fan "Reverse Fan" GB-34 "Short Stack" vineyard sprayers out-perform, out-last, and out-sell all other vineyard tower sprayers combined. Other manufacturers have tried to duplicate our tower and up-spray volute 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 coupled with our short stack tower design enables the operator to spray effectively throughout all of the growing season in most applications. Air-O-Fan's ability to target the air pattern coupled with the towers ability to keep the air and spray in the vine canopy directly reduces drift, saves time, and achieves perfect coverage. The GB-34R "Short Stack" vineyard sprayers combine performance and simplicity, and can be used in both concentrate and dilute applications. The GB-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.