VR3452-HY1-FC1A00 - Viridian Self Adjusting ECM High Efficiency Circulator - Cast Iron, FlangedViridian Self Adjusting High Efficiency Wet Rotor Circulator, Less Flanges Rotated (115V) For more than 70 years, designers, installers and other HVAC professionals like you have learned to count on Taco Wet Rotor Circulators for high quality, reliability and versatility. Taco Wet Rotor Circulators are designed to deliver superior performance across a broad range of head flow requirements in applications from residential to heavy commercial. Typical