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The Caleffi NA20976 is a valve fitting designed for use with the 548 and 5495 series union, specifically tailored for a one and one-fourth inch press hydro separator. This fitting ensures a secure connection in hydronic systems. It is ideal for professionals in the plumbing and HVAC sectors.
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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