Editorial Reviews:
Amazon.com Product Description
The SP Systems farm and home 528 piston 4-gallon back pack sprayer features an external piston pump capable of generating 120 psi of pressure. It has a 16-inch brass wand, durable Viton seals and o-ring for extended life, 47-inches of PVC 1/4-inch thick hose, a tubular steel pump handle. The 4-gallon back pack sprayer also includes shoulder pads and a fan nozzle useful for applying herbicides, insecticides, liquid fertilizers, and diesel. The sprayer comes with a 6-inch tank mouth and drains from the bottom of the tank for easy emptying. It is backed by a 6-month limited manufacturer's warranty.