The Aquavar Solo 2 is a variable speed, constant pressure controller designed for submersible well pumps. The controller monitors pressure and adjusts pump speed to maintain a constant pressure. Single phase input: 230V Three phase output: 5 HP motors Works with 3-phase 3-wire pumps Reduces motor cable wire size NEMA 3R Enclosure: rainproof outdoor/indoor rated Lightning and power surge protection Easy to adjust pressure control push-buttons Provides motor protection on long motor leads Flashing LED for troubleshooting and status Includes pressure sensor and shielded cable Pressure set point adjustable from 20-85 using the standard 100 psi transducer Lower electricity usage by 50% due to the controller converting single phase to 3 phase