... designed. 2 Long working time more than 7hours. Sprayer ESR-505 /ESR-505CModelESR-505ESR-505CCapacity16L16LBattery12V/8A12V/8APumpFL2203( 70PSI)FL2203-1( 70PSI ... -505: Meter, Plastic steel spray lance, Single nozzle,Double nozzle ESR-505C: Three speed flow controller, Meter, Plastic steel Lance,Single Nozzle, Double Nozzle,Three nozzle ...