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The CALEFFI NA16266 is a 1" copper press tailpiece equipped with a 1" brass union nut featuring a calotta mobile design. This adapter is designed for use in hydronic systems to connect press fittings with threaded union components. Built for durability and easy installation, it ensures a tight, corrosion-resistant seal.
The tailpiece requires a sealing washer (not included) for proper installation. Its low-lead brass and copper construction meets current compliance standards for potable and closed-loop systems.
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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