I have lots of 4 gallon battery operated backpack sprayers direct from Chapin and FlowZone.
FlowZone Storm 1G - $229
FlowZone Cyclone 3 - $249
FlowZone Typhoon 3 - $329
FlowZone Mist blower - $1,100
Chapin 24V Backpack - $195 all Brand New in box. I also sell tons of pro equipment, pro pesticides, and lawn care products in my stores in Plano, McKinney, and Weatherford. Everything I sell is brand new and direct from Distributors and manufacturers. Pestshop.com