The solo 417 comfort back pack garden sprayer is a cordless battery powered professional sprayer.  designed to be lightweight and thanks to its ergonomic, padded back pack, the solo 417 can be used all day and comes supplied with a rechargaeable battery.a powerful 12v pump produces pressures of 2.5 bar 38 psi or 4.3 bar 65 psi, making the solo 417 perfect for poly tunnels and large greenhouse spraying. The 18l plastic tank is uv resistant plastic and is suitable for use with all herbicides and garden chemicals. The wand length is adjustable to adapt to the user needs.supplied with a lead gel rechargeable battery.specificationsliquid capacity 18 litreswand length 50cm adjustablespray pressure 2.5 bar 38 psi or 4.3 bar 65 psispray volume 1.07 l min or 1.42 l min standard nozzlebattery suppliedweight 7.6kg empty