Explore our lineup of Grundfos ML and MG pump series—compact yet powerful centrifugal units designed for efficient fluid handling in heating, cooling, booster, and industrial systems. At Pump‑Stop.com, we offer genuine ML models for basic heating applications and MG models featuring sensorless variable speed technology for adaptive performance and energy savings. These pumps come fitted with high-efficiency ECM motors, corrosion-resistant bronze or stainless-steel housings, and integrated anti-blocking features for dependable operation. You’ll also find essential OEM accessories including connector kits, mechanical seals, mounting bases, and replacement motor modules. Whether you're optimizing a hydronic system or upgrading for greater control and efficiency, these pumps deliver precise flow and low-noise performance in compact installations. Not sure which model or part suits your needs? Our technical team is ready to assist with expert guidance. Enjoy fast U.S. shipping and secure checkout with every order.