What if you could solve almost all circulator pump replacement tasks at first customer visit?

Finding and installing the right replacement circulator pump can be a complex and time-consuming job. Waiting for spare parts to be in stock, the complexity of finding the right circulator pump - it disrupts your workflow and often you need to drive back and forth more than once before your installation is complete. But what if you could do a first-time fix at customer visits and leave wasted working hours in the past? 

The new Grundfos UPS4 GO and ALPHA2 GO together with the Grundfos GO app are here to change the game by optimising your workflow and making replacements much faster – saving you a lot of time in the long run. 

A future with fewer pumps

The Grundfos GO range is a unique solution on the market. It has been developed based on more than 30 years of experience with integrated units. The range is designed for both standalone and integrated circulator pumps in domestic heating applications. Its two models cover almost 70% of integrated Grundfos circulator pumps and the majority of stand-alone circulator pumps which ensures quick and effortless replacement of existing circulators, both new and old.

This means you only need to carry an ALPHA2 GO 25-75 130, UPS4 GO 25-65 130, and an FCI signal adapter in your van. 

The UPS4 GO 25-65 130 is compatible with most integrated UPS circulator pumps, and the ALPHA2 GO 25-75 130 is compatible with most UPM3 and UPM4 circulator pumps, as well as the majority of standalone circulator pumps.

With just two circulator pumps in different sizes:

  • You can solve replacement tasks in just one GO. 

  • You don’t have to wait for spare parts.

  • You avoid stock holding issues in your daily work. 

  • You reduce the complexity of finding and installing the right replacement circulator pump, both for stand-alone and for integrated circulator pumps. 

Grundfos GO guides you all the way

Furthermore, the workflow has become much easier and faster because of the Grundfos GO app for circulators, which will guide you through the replacement process. With the GO Replace functionality in the Grundfos GO app, you can use either the Scan-find-replace function or the Search and Select function, and it will provide you with an accurate replacement suggestion.

Explore our product range

Grundfos UPS4 GO and ALPHA2 GO come with groundbreaking new features that will optimise your workflow immensely.


Grundfos UPS4 GO

Learn about the Grundfos UPS4 GO - a high-quality circulator pump with features that ensure the highest performance. The UPS4 GO is suitable for the replacement of integrated UPS pumps and stand-alone circulator pumps. It comes with a great selection of new and improved features, such as:

  • Integrated and stand-alone replacement compatibility

  • Self-venting

  • Dry-running protection 

  • Robust startup


Grundfos ALPHA2 GO

Learn about the Grundfos ALPHA2 GO - the premium selection, offering high performance and features designed to tackle every situation. The ALPHA2 GO is made for replacements of stand-alone and integrated UPM3 and UPM4 circulator pumps. In addition to the features from UPS4 GO, the ALPHA2 GO also comes with: 

  • Guided Setup

  • Warning & alarm log 

  • Air detection & venting

  • Balancing

  • Improved AUTOADAPT

Grundfos GO

The GO Replace for circulators functionality helps you to find the right pump for the task.

Join now​

With Grundfos for Installers, you’ll always be one step ahead

150,000 professionals can’t be wrong!

Thousands of your fellow installers have already signed up for Grundfos for Installers. Join them for free and get unlimited access to tools, training and knowledge. You’ll also be among the first to hear about upcoming products as well as exclusive events.