The PWS-175 de-icing sprayer is designed to sync with SnowEx V-Maxx spreader models SP-8500, SP-8550, SP-9300 and SP-9500. Simply plug the variable flow controller into the spreader’s controller, and the AccuSpray will automatically adjust the flow according to the spread rate. It comes with a 75-gallon capacity for contractors with small to medium pre-wetting needs.