*KeyFeatures*High Compatibility Design: Specifications: 25-40/180. Engineered specifically for underfloor heating systems, this cast iron circulator pump offers a maximum flow rate of 50 L/min and a head of 4 m. With a 1-1/2" threaded connection, it seamlessly replaces your existing hot water recirculating pump, meeting the circulation needs of both homes and complex piping networks with ease.*Durable Construction: Built with a cast iron shell and an IP44 protection rating, this hot water recirculating pump withstands a wide temperature range (2C to 110C). Its high-performance pure copper motor and fully sealed junction box ensure long-term stability and security for reliable operation.*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.*Versatile Accessories: Comes with two 1-1/2 x 1" cast iron adapters and rubber seal rings, making our hot water circulation pump adaptable to common pipe diameters. Whether for new installations or replacing existing equipment, these accessories offer broad compatibility and ease of use.********************************************************************************************************SpecificationsItem Model Number: LPS25-4S-180Max Flow Rate: 50 L/minMax Head Lift: 4 mMax Power Consumption: 72WConnection Type: 1-1/2" Threaded ConnectionApplicable Water Temperature: 35.6 - 30F / 2 - 110CMain Materials: Cast Iron (Casing) / Plastic (Junction Box)Net Weight: 2.4 kg********************************************************************************************************Pakcage Content1 x Circulator Pump2 x Sealing Rings2 x Cast Iron Adapters1 x Instruction manual