{"product_id":"brasscraft-66-4-4x-tube-adapter-1-4-in-compression-x-fnpt-1","title":"Brasscraft 66-4-4X Tube Adapter 1\/4 in Compression X Fnpt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BRASSCRAFT 66-4-4X is a brass tube adapter designed to connect 1\/4-inch compression tubing to a female NPT threaded fitting. This fitting is a standard transition piece used in plumbing, HVAC, and refrigeration systems where a compression line must terminate into a threaded port. The all-brass construction provides corrosion resistance and durability in both wet and pressurized service environments. Licensed plumbers and HVAC technicians install this adapter when transitioning between tubing runs and threaded components such as valves, manifolds, and equipment ports.\u003c\/p\u003e\n\u003cp\u003eThis adapter is suited for residential and light commercial applications involving copper or compatible soft tubing lines. Typical install scenarios include refrigerant-side plumbing connections, water supply lines to appliances, and instrument tubing hookups where a leak-free mechanical seal is required without soldering. The compression-by-FNPT configuration makes it a practical choice in tight spaces where torch work is restricted or undesirable.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-inch compression inlet to female NPT outlet transition\u003c\/li\u003e\n  \u003cli\u003eAll-brass construction for corrosion resistance in plumbing and HVAC service\u003c\/li\u003e\n  \u003cli\u003eDomestically manufactured fitting\u003c\/li\u003e\n  \u003cli\u003eCompression end eliminates the need for soldering at the tube connection\u003c\/li\u003e\n  \u003cli\u003eFemale NPT thread accepts standard male NPT fittings and equipment ports\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or standard-service fitting for residential and light commercial plumbing and HVAC systems requiring a 1\/4-inch compression to female NPT adapter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis fitting is installed by licensed plumbers or HVAC technicians following applicable IPC or IFGC guidelines for the system type. Shut off the water or refrigerant supply and relieve system pressure before making any connections. Hand-tighten the compression nut onto the tubing and follow with wrench tightening per standard compression fitting practice — do not overtighten, as brass compression fittings can crack or deform with excessive force. Apply thread sealant or PTFE tape to the male NPT threads being inserted into the FNPT end before final assembly.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: Compression x FNPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Brass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin\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: BRASSCRAFT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 66-4-4X\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BRASSCRAFT","offers":[{"title":"Default Title","offer_id":51525291737394,"sku":"661414X","price":14.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/82cf65dbf11bfda63690d65b435220d1.jpg?v=1785469758","url":"https:\/\/voomisupply.com\/products\/brasscraft-66-4-4x-tube-adapter-1-4-in-compression-x-fnpt-1","provider":"Voomi Supply","version":"1.0","type":"link"}