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The MIDLAND INDUSTRIES 242RX10X8 is a brass reducing union fitting designed to connect two flare-end lines of different diameters in hydraulic and refrigeration tubing systems. It transitions from a 5/8 inch flare on one end to a 1/2 inch flare on the other, with thread sizes of 7/8-14 and 3/4-16. Rated to 650 psi and capable of operating across a temperature range of -65 to 250 degrees F, this fitting is built for demanding service environments. The 0.035 inch minimum tube wall requirement ensures a secure, leak-free flare seat. HVAC technicians, plumbers, and hydraulic system installers work with this type of fitting regularly.
This reducing union is suited for residential and light commercial applications where copper, brass, aluminum, or steel hydraulic tubing must be joined at a diameter transition. Common use cases include refrigerant line modifications, hydraulic circuit repairs, and fuel or oil line assemblies where a flare-to-flare union is required between mismatched tube sizes. The all-brass construction resists corrosion and holds up well in both indoor and outdoor installations.
Compatible with copper, brass, aluminum, and steel hydraulic tubing. Designed for use in flare-type fitting systems where a reducing union connection is required between 5/8 inch and 1/2 inch tube ends.
Installation should be performed by a licensed HVAC technician, plumber, or qualified hydraulic technician. De-pressurize and isolate the line before disassembly or fitting installation. Ensure tube ends are properly flared to the correct angle and that tube wall thickness meets the 0.035 inch minimum before assembly. Overtightening flare fittings can crack the flare seat - use a calibrated torque wrench appropriate for brass fittings and follow applicable local codes.
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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