High Compatibility Design: Replacement part number: UPS15-58FC. Engineered specifically for underfloor heating systems, this cast iron circulator pump offers a maximum flow rate of 17 GPM and a head of 20 ft. With a 1" flange connection, it seamlessly replaces your existing hot water recirculating pump, meeting the circulation needs of both homes and complex piping networks with ease.

Built-In Check Valve: Designed to ensure water flows in the correct direction, our check valve avoids backflow, maintaining system stability and extending the pump's lifespan. Our hot water circulation pump minimizes maintenance and replacement needs, keeping your system running smoothly.

Low Noise Operation: Featuring a pure copper motor and unique internal design, our cast iron circulator pump operates at a maximum noise level of just 45 dB. Enjoy a peaceful home environment without disruptive noises, even in close proximity to your heating zones.

Adjustable Flow Rate: With three adjustable speed settings, tailor the water circulation speed to your seasonal needs or specific usage requirements. Achieve greater energy efficiency and comfort with ease.

Durable Construction: Built with a cast iron exterior and IP44 protection rating, our hot water recirculating pump withstands a wide temperature range (35.6°F to 230°F). The high-performance pure copper motor and fully sealed junction box ensure long-term stability and security for reliable operation.