Balboa Simplex bath control used to control one 115/120 volt piece of equipment like a pump or air blower in jetted baths, whirlpool baths and spas. A great replacement for older systems that use an air button. This system is used as an inexpensive electronic alternative to an air switch control and can operate one function. The use of a Simplex Top-side Control panel is required. 120v units are supplied with a 3 foot power cord. This product ships in approximately 1 days