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The Holyoke Fittings NS4-4 Brass Flare Nut is a durable fitting designed for plumbing applications. This flare nut is forged for strength and reliability, suitable for use in heating, air-conditioning, and refrigeration systems.
This fitting is ideal for various plumbing and HVAC needs. It offers a reliable connection in tubing and piping 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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