The Chapin 24V battery powered backpack sprayer features a 24V lithium ion battery with a battery charger. Enjoy 2 hours of continuous spraying, that's up to 58 gallon! offers 35-40 PSI with a 20-22-foot maximum horizontal spray stream and up to 32-foot vertical spray stream, 6" wide mouth funnel for easy filling & cleaning with a carrying handle built right into the cap. This sprayer weighs 39% less than competitive units. Santoprene seals in the pump offer maximum chemical resistance. Cushion grip shut-off with built-in, serviceable filter to assure that no debris can clog the nozzle tip. Padded straps offer comfort for prolonged use. Durable & long-lasting with regular cleaning. We also offer full technical support via our customer service team. Seal Material- Viton.