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The Grundfos 519603 is a 1-1/4 inch NPT cast iron flange set. This flange set is designed for use with circulator pumps, specifically the UP series GF 15 and GF 26 models. It includes two flanges, two gaskets, and bolts for easy installation.
This flange set provides a reliable connection for your circulator pumps, ensuring efficient operation and longevity.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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