Solo commercial grade compression sprayers stand up to the toughest, professional applications with more features at competitive pricing. Lightweight, high performance polyethylene tank. Efficient piston pumps pressurize with 50% the pumping required from other brands or pressurize with air compressor. Features a large 4.5″ filler opening, Viton seals and O-rings for long life. Ideal for herbicides, insecticides, disinfectants and fertilizers. 45 psi. Extremely heavy-duty polyethylene tank. Shut-off valve with lock-on/lock-off feature. Pressure relief valve. 28″ unbreakable wand. 48″ high pressure spray hose. Four nozzle assortment. 4.5″ Tank opening Adjustable shoulder strap. Built-in wand retainer.