DEWALT 4 Gal. Backpack Sprayer DXSP190652 - The Home Depot
Chapin Chapin 63924 4-Gallon 24-Volt Battery Backpack Sprayer for Fertilizers, Herbicides and Pesticides in the Spreaders & Sprayers Accessories department at Lowes.com
Victory Professional Cordless Electrostatic Backpack Sprayer
STIHL SGA 85 Battery-powered backpack sprayer – Gardenland Power Equipment
101 Sealed Diaphragm Backpack Sprayer - Sprayers Plus