4.5 gallon translucent ultraviolet resistant polyethylene tank. 4-1/4 in. wide mouth opening with filter screen. External pressure control valve for easy adjustment from 15 PSI to 90 PSI. Fast pressurizing polymer piston pump with adjustable pump seal and built-in filter screen. Pump handle easily adjusts for right or left hand or to any angle. Viton seals in pump discharge valve and pressure control valve. Flexible 16 in. polymer wand with adjustable polymer nozzle and adjustable shoulder straps included.