Check out the new Ryobi 4 gallon battery powered backpack sprayer. Loving this for waterless washing, pre-rinse, and spraying chemicals in general.
Ryobi 18V ONE+ 4 Gallon Backpack Chemical Sprayer P2840
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EXCELLENT] Ryobi One+ Cordless Chemical Sprayer - Work Smarter
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Ibiz 32oz. World Class Waterless Car Wash & Wax on QVC
RYOBI BATTERY POWERED 4 GALLON SPRAYER OVERVIEW/ REVIEW
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RYOBI ONE+ 18V Cordless Battery 1 Gal. Chemical Sprayer with 1.3 Ah Battery and Charger P2810 - The Home Depot
Ibiz 32oz. World Class Waterless Car Wash & Wax on QVC
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The Truth About Ryobi's 4 Gallon Backpack Sprayer