The Poly Control Extension Valve for Leader Compression Sprayers is a combination plastic extension/handle/control valve for leader sprayers. With this convenient accessory, you can have a longer reach with the sprayer along with the extra control of a quality valve. Since 1905, Hudson has been dedicated to designing and producing the most practical sprayers and accessories for homeowners, contractors, and agricultural professionals, so you can be confident in the quality and performance of their products.