{"product_id":"sioux-chief-641wp442-pex-a-ppsu-tee-f1960-1x1x1-2","title":"Sioux Chief 641WP442 Pex-a Ppsu Tee F1960 1x1x1\/2","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SIOUX CHIEF 641WP442 is a PPSU expansion tee fitting designed for F1960 PEX-A tubing systems. PPSU (polyphenylsulfone) is a high-performance thermoplastic chosen for its heat resistance, impact strength, and long-term durability in potable water applications. This tee provides a branch connection in a run of PEX-A tubing, with a 1 inch by 1 inch run and a 1\/2 inch branch outlet. It is installed using the expansion method per the ASTM F1960 standard, requiring an expansion tool and compatible PEX-A pipe. Licensed plumbers install this fitting in residential and light commercial hot and cold water distribution systems.\u003c\/p\u003e\u003cp\u003eThis fitting is suited for new construction and retrofit plumbing projects where PEX-A tubing is the distribution method of choice. The F1960 expansion connection style is commonly used in residential potable water supply lines, radiant heating distribution manifolds, and in-wall or in-slab rough-in work. The 1 inch by 1 inch by 1\/2 inch configuration is a standard reducing tee used to branch off a main 1 inch supply run to a 1\/2 inch fixture or branch line. No soldering, crimping, or clamp rings are required for installation.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePPSU construction provides high heat and impact resistance for potable water service\u003c\/li\u003e\n\u003cli\u003eF1960 expansion connection method eliminates the need for crimp rings or cinch clamps\u003c\/li\u003e\n\u003cli\u003e1 inch x 1 inch x 1\/2 inch reducing tee configuration for standard branch connections\u003c\/li\u003e\n\u003cli\u003eCompatible with PEX-A tubing only — the expansion method requires PEX-A pipe\u003c\/li\u003e\n\u003cli\u003eSuitable for both hot and cold potable water distribution applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with F1960-compliant PEX-A tubing and expansion rings in residential and light commercial potable water piping systems. Requires PEX-A pipe specifically — this fitting is not compatible with PEX-B or PEX-C tubing.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires a calibrated F1960 expansion tool sized for the corresponding pipe diameter; always verify the tool is properly sized before expanding PEX-A pipe ends. Shut off the water supply and depressurize the system before beginning work. Follow local plumbing codes, which typically reference IPC or UPC standards, for approved PEX-A installation practices. Allow expanded pipe ends to return to ambient temperature and fully contract onto the fitting before pressure testing the system.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Standard\u003c\/strong\u003e: ASTM F1960 PEX-A Expansion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration\u003c\/strong\u003e: Tee\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRun Size\u003c\/strong\u003e: 1 inch x 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBranch Size\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: PPSU (Polyphenylsulfone)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 739236715029\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SIOUX CHIEF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 641WP442\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SIOUX CHIEF","offers":[{"title":"Default Title","offer_id":51383878517042,"sku":"641WP442","price":24.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312673921.png?v=1782610380","url":"https:\/\/voomisupply.com\/products\/sioux-chief-641wp442-pex-a-ppsu-tee-f1960-1x1x1-2","provider":"Voomi Supply","version":"1.0","type":"link"}