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The All-Source 456018 is a 1/2 inch nominal copper to 3/8 inch OD union. This fitting connects pipes with different diameters. It is suitable for plumbing and HVAC applications where copper piping is required.
This union fits well into copper pipe systems and is essential for efficient installations and repairs.
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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