Chapin’s 1-gallon poly sprayers are versatile, lightweight tools designed for fertilizers, herbicides, pesticides, and cleaning chemicals. Standard models, such as the 16100, feature a translucent polyethylene tank, a 12-inch wand, an adjustable nozzle, and a piston pump system operating at . Most models include an in-tank anti-clog filter and a lock-on trigger feature for continuous spraying.