Circulator Pump 110V 42W - High Efficiency ECM Motor, 16 GPM, Hot Water Recirculation Pump, 5 Modes, Low Noise, Cast Iron

【High Efficiency ECM Motor】: This circulator pump utilizes an ECM permanent magnet motor with electronic commutation technology; reducing energy consumption and providing consistent efficiency; ideal for upgrading older, less efficient pumps. 【Intelligent Control Modes】: Equipped with five smart control modes including Automatic, Constant Speed, Constant Pressure, Proportional Pressure, and Night Mode; this pump automatically adjusts operation based on your heating requirements; optimizing performance and saving energy. 【Leak-Proof Design & Built-In Check】: Featuring two robust rubber seal rings; this pump prevents leaks at connection points; safeguarding your heating system; the integrated check prevents backflow; maintaining system stability and extending pump life. 【Low Noise Operation】: Operates at under 45 dB thanks to a copper permanent magnet motor and a brush-free design; ensuring a quiet and peaceful home environment; even near underfloor heating areas; reduces mechanical wear for increased longevity. 【Durable Construction & Wide Temperature Range】: Built with a robust cast iron housing; this pump can handle water temperatures from 35.6 to 230°F; providing reliable performance in various conditions; suitable as a replacement for part number 007E-2F2.