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Armstrong 816653-000 Flange Gasket is designed for use with S-25 model circulator pumps. Its main purpose is to ensure a secure and leak-free connection in hydronic systems.
This flange gasket by Armstrong is crafted to meet the requirements of S-25 model circulator pumps, providing a reliable seal. It is made of high-quality rubber for durability 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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