VSI Legacy Series 500 Liquid Deicing SprayerVSI Legacy Series 500 is a mid sized sprayer that holds 500 gallons and is suitable for F350 F450 or equivalent trucks depending on how much weight the truck is rated for. This unit is loaded with the features you need to get the job done as efficiently and effectively as possible. It is completely wireless and controlled via bluetooth through the VSI Spray Control App. The app also gives you the ability to track jobs and make adjustments in real time