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The ANDERSON METALS 754042-08 is a lead-free brass flared tube union designed to join two flared tube ends in a single inline connection. It accepts 1/2-inch tube OD on both ends with a 45-degree flare angle and a flare x flare end connection. Built from lead-free brass, this fitting meets requirements where potable water or low-lead material compliance is necessary. It is rated for up to 750 psi working pressure in both static and dynamic service conditions. Plumbers and HVAC technicians use this type of union when a section of tubing must be disconnected and reconnected without cutting, making it a practical choice for service access points in refrigerant, fuel gas, and water lines.
This flared tube union is suited for residential and light commercial plumbing, HVAC refrigerant piping, and fuel gas distribution systems where a removable, pressure-rated connection is required. The 45-degree flare profile is the standard angle used in ACR copper tubing applications as well as many gas appliance supply lines. A licensed plumber or HVAC technician typically installs this fitting as part of a brazed or flared tubing assembly.
Designed as an OEM-style replacement and standard-fit union for 1/2-inch OD flared copper tubing assemblies in plumbing, HVAC refrigerant, and gas appliance applications requiring a 45-degree flare connection.
Installation should be performed by a licensed plumber or HVAC technician in accordance with applicable local codes, IPC, or IFGC requirements. Shut off and depressurize the line completely before disassembling or installing the fitting. Use a calibrated flaring tool to produce a clean, uniform 45-degree flare seat on both tube ends before torquing the flare nuts. Do not over-torque the flare nuts, as this can crack the flare seat and cause leaks.
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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