Pentair IntelliFlo VF (Variable Flow) Pump – 011012IntelliFlo Variable Flow (VF) High Performance Pumps The IntelliFlo Variable Flow (VF) pumps has an onboard computer and intelligent software to automatically calculate and program the minimum flow requirements for every pool taskfiltering, heating, cleaning, spa jets, water features, and moreto optimize performance and minimize energy use. As functions tasks change, IntelliFlo self adjusts to maintain optimal flow rates for further energy savings.