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Reducing Adapter, Copper, NPT, 1/2 in X 3/8 in
The Mueller Streamline® W01132 Copper Sweat × Male NPT Reducing Male Adapter is a precision-engineered solder-joint fitting designed for pressurized supply systems. With a 1/2" sweat (C) × 3/8" male NPT connection, it provides a secure transition between copper tubing and threaded pipe systems. Constructed from wrot copper, the adapter offers durability, corrosion resistance, and dimensional accuracy. Rated for 700 psi at 250 °F, it is suitable for residential, commercial, and industrial plumbing applications. Streamline® copper fittings are trusted for their consistent quality and compliance with industry standards. The W01132 conforms to ASME B16.22 and MSS SP104, and select sizes are UL-verified for performance.
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