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The ANDERSON METALS CORP 710082-1006 is a compression reducing union designed to connect two different-diameter compression lines in a single inline fitting. It transitions from a 5/8-inch compression end to a 3/8-inch compression end, making it suitable for reducing or adapting tubing runs without soldering or brazing. The fitting is lead free compliant and meets the requirements of Public Law 111-380, which governs lead content in potable water fittings. Plumbers and HVAC technicians reach for this type of union when a tubing size change is needed mid-run in a water supply or refrigerant-adjacent application.
This fitting is used in residential and light commercial plumbing systems where two compression tubes of differing diameters must be joined inline. Typical install scenarios include water supply line repairs, undersink connections, and any retrofit situation where an existing larger-diameter run must step down to a smaller-diameter branch or appliance connection. The carded packaging makes it a common stocking item for service trucks and supply house shelves.
Designed as an OEM-style replacement and general-service compression reducing union for standard 5/8-inch and 3/8-inch compression tubing configurations in residential and light commercial plumbing systems.
Installation is performed by a licensed plumber or qualified HVAC technician. Shut off the water supply and relieve line pressure completely before removing existing fittings or installing this union. Ensure tubing ends are cut cleanly and deburred before seating the compression ferrules to achieve a leak-free joint. Follow all applicable local plumbing codes and IPC guidelines for compression fitting installations in potable water 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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