Specifically designed for a wide range of flow and head requirements, the heavy-duty 0015-IFC three-speed pump is ideal for medium-sized hydronic systems where installers require maximum reliability and versatility, said the company. The circulators are offered with in-line or rotated flange orientation and include a removable, unibody integral flow check (IFC) that prevents gravity flow, reduces installation costs, and improves pump performance. The 0015 is available in cast iron and stainless steel for use with open, fresh-water systems. According to the manufacturer, the circulator delivers the performance and fine-tuning capabilities sure to satisfy the requirements for the most demanding hydronic systems. The three-speed switching capability provides fine-tuning control to match a wide combination of tube diameters and length of runs.