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Great reliability with no compromise between free passage and efficiency
The SL1 1.1-11 kW is a submersible wastewater pump with a Grundfos S-tube® impeller, offering the best solution for large flows of raw sewage, with free passage of solids up to 5”/125 mm. The SL1 from Grundfos is a tried and tested performer in the industry, designed to optimise your system with minimum servicing required. Built for durabity, easy installation and hassle-free operation, the SL1 comes packed with innovative Grundfos features that protect the pump and ensure optimal system performance for industrial and municipal wastewater applications.
See how customers benefit from this product
When Grundfos is a part of the solution, you get reduced energy consumption, increased comfort and unsurpassed operational reliability. Read our customers' own stories about how they benefitted from the Grundfos approach to intelligence, water and energy.
Become an expert in just a few clicks
Save time in your daily work by improving your skills, your know-how and your business with the online training platform ECADEMY.
Click on a course below to start your training now.
Interested in improving your product knowledge?
Find out about the latest studies of pumps and systems, where to use Grundfos solutions and how to achieve the best performance, or search Grundfos research & insights for specific learning materials, articles, white papers, videos and much more that benefit your solution.
Whether you need a one-time service or a complete maintenance program, Grundfos offers a wide range of service offerings to keep you covered for the lifetime of all your pumps.
Get answers to your questions about this product
We have gathered frequently asked questions and their answers in one place. See the most frequently asked questions below or go to the Grundfos FAQ for a complete list of answers to questions about our products.
Become an expert in just a few clicks
Save time in your daily work by improving your skills, your know-how and your business with the online training platform ECADEMY.
Click on a course below to start your training now.
Service videos
How can we help you?
Whether you’re looking to buy a product or simply seeking advice from a Grundfos expert, we are more than happy to help you get the most out of your pump solution! Feel free to get in touch if you need support.