All standard Grundfos SP borehole pump models are made entirely of stainless steel DIN W.-Nr. 1.4301 (AISI 304). Where particularly aggressive liquids are encountered, the pumps are available in extra high grade stainless steel DIN W.-Nr. 1.4401 (AISI 316) or, for severe conditions, DIN W.-Nr. 1.4539 (AISI 904 L).
Please note: The range of SP Single Phase pumps require a control box to operate and this should be a Grundfos SA-CSIR or SA-CSCR to protect the warranty.
When purchasing both pump and control box, further discount is available. We supply the whole range of Grundfos pumps so please contact us for a price if you require a model that is not shown.