Feature: Premium Materials: Crafted from heavy-duty cast iron, this high efficiency circulator pump boasts high hardness and excellent wear resistance. It stands up to long-term use without damage, and provides stable performance even at high temperatures Quiet & Energy Saving: Powered by an advanced ECM permanent magnet motor, the cast iron circulator pump runs quietly and efficiently with noise levels under 45 dBA. Features like automatic night mode and thick insulation further boost energy savings Excellent Performance: This AC 120V/60Hz circulator pump delivers a max flow of 16 GPM and a max lift of 20 ft (6 m). Features a 1/17 HP motor and a wide liquid temperature range of 2°C to 110°C, and an IP44 protection rating for efficient operation Complete Accessories: Comes ready with all necessary installation parts, including flange connection, sealing rings, etc. Compatible with many major brands for easy replacement, this hot water recirculating pump avoids backflow with a built-in check valve Wide Application: Ideal for residential heating systems, this energy-saving hot water circulator pump enhances water circulation efficiency and reduces hot water waiting time. Compatible with underfloor heating, radiators, solar water heaters, and more Package Content: 1 x High Efficiency Circulator Pump 2 x Sealing Rings 1 x Power Cord 1 x User Manual