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The MUELLER INDUSTRIES BDNA-15604 is a wrot copper pipe adapter designed to connect a copper sweat (C) end to a male threaded (M) end in a single compact fitting. Sized at 3/8 inch by 3/8 inch with an outside diameter of 1/2 inch on the sweat end and 3/8 inch on the male threaded end, this adapter is a standard transition fitting used in residential and light commercial plumbing and HVAC refrigerant piping systems. Wrot copper construction provides reliable pressure integrity and is compatible with standard soft-solder and lead-free solder joining methods. Licensed plumbers and HVAC technicians install this fitting during new construction, retrofit, and repair work.
This adapter is suited for residential and commercial plumbing supply lines, HVAC refrigerant line connections, and hydronic systems where a copper sweat-to-male threaded transition is required. Its compact dimensions make it practical in tight spaces where a direct sweat-to-thread connection is needed without additional fittings. It is a single-unit package with a minimum order quantity of 5 units.
Designed as an OEM-style replacement and standard-use fitting for copper plumbing and HVAC piping systems requiring a 3/8 inch sweat to 3/8 inch male threaded adapter connection.
Installation should be performed by a licensed plumber or HVAC technician in accordance with applicable local plumbing codes and ASME B16.22 standards for wrought copper fittings. Shut off and depressurize the supply line before cutting or disassembling any existing piping. Clean and flux both mating surfaces thoroughly before soldering, and use lead-free solder where required by local code. Do not overtighten the male threaded connection — apply thread sealant tape or compound appropriate for the service fluid.
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