VR15L-F - ECM High-Efficiency Circulator - Low-Head, Cast Iron, 1-1/2" FlangesTaco VR15L F ECM High Efficiency Circulator Low Head, Cast Iron, 1 1 2" Flanges The Taco VR15L F is a high efficiency, variable speed commercial circulator pump from the 00e VR series. Designed for low head applications, it is ideal for closed loop heating and cooling systems using water or water glycol solutions. Featuring ECM technology with self sensing capability, the VR15L F reduces energy consumption while providing reliable, adaptive