{"product_id":"uponor-lf4571010-female-adapter-1-in-pex-x-fnpt-brass","title":"Uponor LF4571010 Female Adapter 1 in Pex X Fnpt Brass","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe UPONOR LF4571010 is a 1-inch lead-free brass female adapter designed to transition between PEX tubing and female NPT threaded connections. It provides a reliable mechanical joint where PEX distribution lines meet threaded valves, manifolds, or other threaded fittings in a potable water system. The adapter is manufactured from lead-free brass, meeting current requirements for use in drinking water applications. Licensed plumbers and pipefitters install this fitting during new construction and remodel work where PEX-to-threaded transitions are required.\u003c\/p\u003e\n\u003cp\u003eThis adapter is suited for residential and light commercial plumbing systems that use PEX as the primary distribution pipe. Common install scenarios include connecting PEX supply runs to threaded shutoff valves, boiler connections, water heater ports, and manifold inlets. The 1-inch size handles main distribution lines and larger branch runs. Domestic manufacture supports compliance requirements for public and government-funded construction projects where country-of-origin documentation is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLead-free brass construction for potable water compliance\u003c\/li\u003e\n  \u003cli\u003e1-inch PEX inlet transitions to 1-inch female NPT thread\u003c\/li\u003e\n  \u003cli\u003eDomestically manufactured for projects requiring domestic material sourcing\u003c\/li\u003e\n  \u003cli\u003eCompatible with standard PEX expansion and crimp installation methods appropriate to the UPONOR system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or system fitting for 1-inch PEX plumbing installations requiring a female NPT threaded outlet connection.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber in accordance with local plumbing codes and applicable IPC or IRC provisions governing PEX systems. Shut off the water supply and depressurize the line before installing any fitting. Use the correct PEX expansion or crimp tool specified for the tubing and fitting size to ensure a leak-free joint. Inspect the female NPT threads for debris and apply an approved thread sealant before making up the threaded connection.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: PEX x FNPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Lead-Free Brass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: Domestic\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: UPONOR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: LF4571010\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"UPONOR","offers":[{"title":"Default Title","offer_id":51524818796850,"sku":"LFADAPTFIP1","price":37.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/37f28157cc9591009303e66c1760c530_3dab4604-3e53-41b0-8caa-2a0a897cfa23.jpg?v=1785458487","url":"https:\/\/voomisupply.com\/products\/uponor-lf4571010-female-adapter-1-in-pex-x-fnpt-brass","provider":"Voomi Supply","version":"1.0","type":"link"}