{"product_id":"mueller-w01028-3-4-coupling","title":"Mueller W01028 3\/4\" Coupling","description":"\u003cp\u003eThe \u003cstrong\u003eMueller W01028 3\/4\" Coupling\u003c\/strong\u003e is a professional-grade \u003cstrong\u003ewrot copper fitting\u003c\/strong\u003e engineered for high-pressure \u003cstrong\u003eHVACR and plumbing\u003c\/strong\u003e applications. Manufactured from 99.9% pure \u003cstrong\u003eUNS C12200 copper\u003c\/strong\u003e, this \u003cstrong\u003eCxC (Copper-to-Copper)\u003c\/strong\u003e coupling features a \u003cstrong\u003erolled stop\u003c\/strong\u003e to ensure precise tube positioning and consistent solder flow during installation. Designed to meet \u003cstrong\u003eASME B16.22\u003c\/strong\u003e and \u003cstrong\u003eASTM B75\u003c\/strong\u003e standards, the W01028 is rated for operating pressures up to \u003cstrong\u003e700 PSI\u003c\/strong\u003e at 250°F, making it suitable for both \u003cstrong\u003erefrigeration lines\u003c\/strong\u003e and \u003cstrong\u003epotable water systems\u003c\/strong\u003e. Its \u003cstrong\u003elead-free\u003c\/strong\u003e construction complies with \u003cstrong\u003eNSF 61G\u003c\/strong\u003e, providing long-term reliability in specialized mechanical environments. For contractors requiring \u003cstrong\u003esweat fittings\u003c\/strong\u003e that maintain structural integrity under thermal expansion, this \u003cstrong\u003e3\/4 inch copper coupling\u003c\/strong\u003e provides the industrial durability needed for multi-zone hydronic or commercial refrigerant piping.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Pressure Performance:\u003c\/strong\u003e Rated for \u003cstrong\u003e700 PSI\u003c\/strong\u003e, ideal for modern high-pressure refrigerants and \u003cstrong\u003eHVACR\u003c\/strong\u003e service.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision Alignment:\u003c\/strong\u003e Integrated \u003cstrong\u003erolled stop\u003c\/strong\u003e prevents over-insertion and ensures a solid \u003cstrong\u003esolder joint\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade:\u003c\/strong\u003e Constructed from \u003cstrong\u003ewrot copper\u003c\/strong\u003e (UNS C12200) for superior corrosion resistance and thermal conductivity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompliance Certified:\u003c\/strong\u003e Meets \u003cstrong\u003eASME B16.22\u003c\/strong\u003e, \u003cstrong\u003eASTM B75\u003c\/strong\u003e, and \u003cstrong\u003eNSF 61G\u003c\/strong\u003e standards for broad system compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIs this coupling compatible with R-410A refrigeration systems?\u003c\/strong\u003e Yes, its 700 PSI rating at 250°F makes it highly suitable for high-pressure refrigeration and air conditioning applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCan the Mueller W01028 be used for potable water?\u003c\/strong\u003e Absolutely. It is manufactured from lead-free wrot copper and meets NSF\/ANSI 61 requirements for drinking water.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDoes this fitting require specific soldering techniques?\u003c\/strong\u003e It uses standard sweat connection methods; ensure the 3\/4\" OD tube is cleaned and fluxed properly before reaching the rolled stop.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e","brand":"Mueller","offers":[{"title":"Default Title","offer_id":35643310540,"sku":"W01028","price":4.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/products\/mueller-w01028-3-4-coupling-10_3a7a2cf7-545e-4883-8068-038a768b304c.jpg?v=1736208290","url":"https:\/\/www.gsistore.com\/products\/mueller-w01028-3-4-coupling","provider":"GSIstore","version":"1.0","type":"link"}