{"product_id":"cast-pipe-fittings-union-1-1-2ft-npt-female-stainless-steel-304","title":"Cast Pipe Fittings Union 1-1\/2ft NPT Female Stainless Steel 304","description":"\u003cp\u003eIn this review the Cast Pipe Fittings Union 1-1\/2' NPT Female is evaluated for plumbers, workshop fabricators, and maintenance technicians who need a reliable threaded union that resists corrosion and survives repeated assembly. The bottom line: this union is a workmanlike, no-nonsense connector built from \u003cstrong\u003estainless steel 304\u003c\/strong\u003e that replaces weaker brass parts and handles a wide range of temperatures and pressures, making it a solid choice when longevity and cross-material compatibility matter.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eSize and fit:\u003c\/strong\u003e The 1-1\/2' NPT female thread provides a standard threaded connection for joining two male pipes without welding, saving time on installation.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Constructed from stainless steel 304 to resist corrosion and offer greater durability than brass in demanding environments.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUnion design:\u003c\/strong\u003e The coupling shape allows easy disassembly and reconnection for maintenance or system reconfiguration.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e Rated from -29 to 120C so it can be used in cold storage lines and many hot water or process applications.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePressure capability:\u003c\/strong\u003e Class 150 rating up to 360 PSI working pressure for common industrial and plumbing duties.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaterial compatibility:\u003c\/strong\u003e Can be joined to copper, brass, plastic, aluminum, and welded steel, which simplifies mixed-material systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis union is aimed at professional plumbers, HVAC and process technicians, and hobby fabricators who need a durable threaded coupling that tolerates repeated use and exposure to corrosive conditions. The use of \u003cstrong\u003estainless steel 304\u003c\/strong\u003e makes it attractive where brass fittings have failed or when a longer service life is required.\u003c\/p\u003e\n\u003cp\u003eIt may be overkill for purely decorative or very low-stress DIY projects where cost is the primary concern, and those needing higher pressure or specialty alloys for acidic environments should look for a different grade of steel or a higher pressure class.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eDurable stainless steel construction that resists corrosion better than brass.\u003c\/li\u003e\n \u003cli\u003eThreaded union design permits easy assembly, disassembly, and system modification.\u003c\/li\u003e\n \u003cli\u003eWide working temperature range suitable for many industrial and plumbing systems.\u003c\/li\u003e\n \u003cli\u003eCompatible with multiple pipe materials, simplifying repairs and retrofits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eClass 150 pressure rating may not suit very high-pressure industrial systems requiring higher classes.\u003c\/li\u003e\n \u003cli\u003eStainless steel parts can cost more than basic brass alternatives for low-demand uses.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eThreaded Union (coupling)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e1-1\/2' NPT Female\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eStainless Steel 304\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003eClass 150 (0-360 PSI working)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eWorking Temperature\u003c\/td\u003e\n\u003ctd\u003e-29 to 120C (-20 to 245F)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eCopper, brass, plastic, aluminum, welded steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Cast Pipe Fittings Union 1-1\/2' NPT Female is a reliable, value-minded choice for professionals who need a durable threaded connector that tolerates mixed materials and routine maintenance. Its \u003cstrong\u003estainless steel 304\u003c\/strong\u003e construction and practical pressure and temperature ratings make it a sensible upgrade over brass for most plumbing and light industrial tasks.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this union compatible with copper pipe?\u003c\/strong\u003e\u003cbr\u003eYes. The stainless steel 304 union can be connected to copper, as well as brass, plastic, aluminum, and welded steel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum working pressure?\u003c\/strong\u003e\u003cbr\u003eThe union is rated as Class 150 with a working pressure up to 360 PSI as specified.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat temperature range can it handle?\u003c\/strong\u003e\u003cbr\u003eIt is rated for working temperatures from -29C to 120C (-20F to 245F).\u003c\/p\u003e","brand":"DERPIPE","offers":[{"title":"Default Title","offer_id":48635534475483,"sku":"B09FJCBGMC","price":32.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71Us-c6UUFL._AC_SL1500.jpg?v=1778560514","url":"https:\/\/gearmusthave.com\/products\/cast-pipe-fittings-union-1-1-2ft-npt-female-stainless-steel-304","provider":"GearMustHave","version":"1.0","type":"link"}