About This EASILY AND EFFECTIVELY handles liquid disinfectants, fertilizers, herbicides, pesticides and formulations for tree, shrub and plant protection with a high-performance piston pump capable of up to 90 psi pressure. DELUXE shoulder straps and waist belt ensure user comfort while the stability from the rugged metal frame allows for easy carrying when filled. VENTILATED, padded, and adjustable shoulder straps provide maximum user comfort for extended wear. QUICK ADJUSTMENT tabs allow the padded and ventilated backpack to be customized for a comfortable, lumbar supported fit. DURABLE construction including an unbreakable 28in wand and shut-off valve for excellent reach and a commercial shut-off valve to minimize user fatigue. Overview Brand : SOLO Tank Volume : 4 Gallons Material : Metal Style : Knapsack Power Source : Hand Powered