The Pro Series Pumps Vertical Switch is one in a line of many Pro Series float switches available for sump, sewage, or effluent pump applications. The Pro Series lineup gives customers more options to best fit their needs by having a Good, Better, Best philosophy. The base model Pro Series Vertical Switch (VS) is designed for reliability. It has a large float that rides vertically on a rod with an adjustable travel. The vertical switch simply mounts to the discharge pipe, at the activation height of your choosing, with the included stainless steel hose clamp and is a piggy-back switch making it compatible with most sump, sewage or effluent pumps. It works well in small and large pits and is not sensitive to turbulence.