https://tools.woot.com/offers/18v-1-2-gallon-es-sprayer-bare-tl-tool-only-12 RYOBI ONE+ 18V Cordless Electrostatic 0.5 Gal. Sprayer (Tool Only, P2809BTL ) for $21.99. Shipping is free for Amazon Prime Members (must login with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is otherwise $6 per order.