The BAUER™ 20V Cordless 4 gallon Backpack Chemical Sprayer is easy to use, easy to handle and sprays up to 40 gallons per charge.* The rugged metal spray wand has a durable, long-lasting nozzle that quickly adjusts from spray to stream. The 53 in. flex hose provides a spray reach over 15 ft. Designed with an extra large, translucent tank to easily determine fluid level.