The 20’ single piggyback variable level float switch allows you to adjust the on/off points on a nonautomatic pump rated for 230 V and 13 amps or less. The switch can be used in a variety of applications including sewage, effluent, and grinder pumps. Zoeller® Float Switch, Piggyback Variable Level, Series: Switch-Mate, 230 V AC, Normally Open Switch, PVC Body