Specifications: Rechargeable electric Backpack sprayer Tank material polyethylene Tank capacity 4 us gallons(15.14 liters) Battery 12 volt, 7.0amp/hour sealed lead/acid Charger automatic sealed lead acid 120 colt 60hz Input, 12vdc, 1000ma output. Pump shurflo slv series, 12volt, 1.0gpm max, 40psi demand switch Pump materials of construction polypropylene pump body, viton valve, Santoprene diaphragm Duty cycle intermittent Spray hose reinforced braided PVC Spray wand polypropylene handle, aluminum lance, Plastic tip, adjustable cone/stream pattern Inlet strainer PVC/stainess steel.