| The Taco Viridian VR1816 pump is an infinitely-variable speed, high-efficiency wet rotor circulator with an ECN permanent magnet motor. • Infinitely-variable fixed speed to fine-tune any zone • Self-adjusting constant pressure for zone valve applications • Self-adjusting proportional pressure for panel radiators and thermostatic radiator valves • 115V, 60 Hz single phase • 1590-4830 RPM. Max shutoff head 18ft. 16 gallons per minute Free shipping, see details. |