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Grundfos 99163937 ALPHA2 15-55SF Stainless Steel Circulator Pump w/ Terminal Box

Original price $708.00 - Original price $708.00
Original price
$708.00 - $708.00
Current price $708.00
in stock

Rise takes a thoughtful approach to assessing and choosing home improvement products and brands that prioritize homeowners' health, their wealth, and the planet.

By incorporating a permanent magnet motor design, power consumption is now reduced by 50%. The Grundfos ALPHA adapts to the variable demands of the system without sacrificing comfort. Using the AUTOADAPT feature, the Grundfos ALPHA will analyze the system and adjust it to meet your heating demands.


  • AUTOADAPT measures system changes automatically and maximizes energy savings
  • Easy-to-use operation
  • Select a mode with the touch of a button
  • Easy-to-read LED display shows flow indication and power consumption
  • Simple plug connections
  • No wiring required
  • Terminal box for conduit connection applications

          Delivery time / Order Processing & Shipping Times

          Rise ships manufacturer direct. We work hard so you receive your product(s) as quickly as possible. Shipping times are subject to each carrier's daily cut-off time, and dependent upon warehouse turnaround. Learn more about our order processing & shipping times here.

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          miles driven by an average gasoline-powered car
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          TypeVariable Speed Pump
          MaterialStainless Steel
          Flow Range (GPM)0-21
          Max Flow (GPM)21
          Head Range0-19 
          Max Head19 ft
          Max Pressure (PSI)150
          Frequency60 Hz
          Temperature Range (F)36°F - 230°F
          Connection TypeFlanged x Flanged
          Connection Size3/4" 1" 1-1/4" 1-1/2"


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