Grundfos 98057205 UP 20-15N (150) Hot Water Service Circulator Stainless Steel\n\nDescription\n\nPart No: - 98057205 \nGenuine Part Not a cheap Chinese make.\nThis part fits in following Boilers:Model Type:UP: Refers to a three-speed circulator pump, allowing for operational flexibility and efficiency adjustments.20: Indicates the nominal diameter of the pump\u2019s connection ports, which is 20 mm or 1 1/4\u2033 threads.15: Refers to the pump\u2019s head (maximum vertical lift) in decimeters, equivalent to 1.5 metres.N: Denotes that the pump housing is made of stainless steel, making it resistant to corrosion. This feature is especially important for applications involving water with low pH or domestic hot water systems.Material:Stainless steel pump housing ensures durability and suitability for a variety of water qualities.Resistant to corrosion and ideal for aggressive or sanitary environments.Three-Speed Operation:Allows the user to choose the speed based on the sys