{"product_id":"mueller-streamline-w01271-female-adapter-c-x-fpt-1-1-4-inches-wrot-copper-solder-joint-fitting","title":"Mueller Streamline w01271 Female Adapter C X Fpt 1-1\/4 Inches Wrot Copper Solder Joint Fitting","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe Mueller Streamline W01271 is a 1-1\/4 inch wrot copper female adapter designed for copper solder-joint plumbing systems. It connects a copper cup end to a female pipe tapered thread, making it a reliable transition fitting for pressurized water supply lines. Plumbers and pipefitters use this adapter to tie copper tubing runs into threaded pipe connections in both residential and commercial applications. The fitting is manufactured from high-grade wrot copper, which is known for its strength, corrosion resistance, and long service life in potable water systems. Wrot copper fittings are formed from wrought copper material, giving them a denser grain structure and tighter dimensional tolerances compared to cast fittings. This makes them well suited for above-ground potable water supply systems where reliability and leak-free performance are critical. The cup end, also referred to as a C or female solder end, accepts standard copper tubing and is joined using lead-free solder or brazing alloy. The female pipe tapered thread end, also known as FPT or NPT, accepts a male threaded pipe or fitting. This C x FPT configuration is one of the most common adapter styles used by professional plumbers when transitioning from copper to threaded connections at valves, fixtures, or equipment. Mueller Streamline has been producing copper solder-joint fittings for over 80 years, and the Streamline brand is specified and trusted by trade professionals worldwide. This fitting meets NSF 61G certification for use in potable water systems, ensuring it is safe for drinking water contact. It also conforms to multiple ASME standards covering copper and threaded fittings, including B16.22, B16.18, B16.15, B16.24, B16.50, and B1.20.1. At 0.46 pounds, it is lightweight and easy to handle on the job. Whether you are roughing in new plumbing or making repairs, this adapter delivers consistent performance in pressurized supply systems.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e1-1\/4 inch C x FPT female adapter for transitioning copper tubing to female NPT threaded connections\u003c\/li\u003e\n\u003cli\u003eMade from wrot copper for superior density, dimensional accuracy, and corrosion resistance in potable water systems\u003c\/li\u003e\n\u003cli\u003eNSF 61G certified and compliant with ASME B16.22, B16.18, B16.15, B16.24, B16.50, and B1.20.1 standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\u003cp\u003eThe Mueller Streamline W01271 is a code-compliant, NSF 61G certified wrot copper female adapter built for above-ground pressurized water supply systems. It provides a dependable solder-to-thread transition that professional plumbers can rely on in both new construction and retrofit work.\u003c\/p\u003e\u003ch3\u003eProduct Information\u003c\/h3\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: MUELLER STREAMLINE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: W01271\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Wrot Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.46 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: C - Cup (Female Solder)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Size\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecond End Type\u003c\/strong\u003e: FPT - Female Pipe Tapered Thread, NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecond End Size\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: NSF 61G, ASME B16.15, ASME B16.18, ASME B16.22, ASME B16.24, ASME B16.50, ASME B1.20.1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MUELLER STREAMLINE","offers":[{"title":"Default Title","offer_id":51121120903474,"sku":"W01271","price":43.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/304882188.jpg?v=1777748958","url":"https:\/\/voomisupply.com\/products\/mueller-streamline-w01271-female-adapter-c-x-fpt-1-1-4-inches-wrot-copper-solder-joint-fitting","provider":"Voomi Supply","version":"1.0","type":"link"}