Simple and Reliable, this Four Function Control by Len Gordon can run any 2 Pieces of Equipment. Includes Built In 24 Hour Time Clock, Programmable in 15 Minute Increments with Manual Override. Operated by a Single Air Button (Sold Separately), Control Distance up to 150', Depending on Air Button Used. Will Control a Single or 2-Speed Pump and Blower. Neutral required. Comes with air tubing.