{"product_id":"reliance-worldwide-04357-straight-reducing-coupling","title":"Reliance Worldwide 04357 Straight Reducing Coupling","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe RELIANCE WORLDWIDE 04357 is a straight reducing coupling designed to connect tubing of two different outside diameters within a fluid or refrigerant line. This fitting transitions a 5\/8 inch OD line down to a 3\/8 inch OD line in a single inline connection with no change in flow direction. It is a common component in plumbing, HVAC, and refrigeration piping systems where a direct reduction is needed without adding bends or offsets. Licensed plumbers and HVAC technicians reach for this fitting when upsizing or downsizing tubing runs during installation, repair, or system modification work.\u003c\/p\u003e\u003cp\u003eThis straight reducer is suited for residential and light commercial applications where two tubing sizes must be joined inline. Typical use cases include connecting supply and return lines of differing diameters, adapting between sections of a refrigerant circuit, or completing a plumbing rough-in where tubing sizes change between fixtures and mains. The inline straight profile keeps the assembly compact and simplifies routing in tight spaces.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eStraight inline profile with no directional change for clean, compact installations\u003c\/li\u003e\n\u003cli\u003eReduces from 5\/8 inch OD to 3\/8 inch OD in a single fitting\u003c\/li\u003e\n\u003cli\u003eSuitable for fluid and refrigerant line applications in HVAC and plumbing systems\u003c\/li\u003e\n\u003cli\u003eOD sizing allows compatibility with standard tubing used across residential and light commercial work\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style straight reducing coupling for use with 5\/8 inch OD and 3\/8 inch OD tubing in plumbing and HVAC refrigerant line applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed plumber or HVAC technician following applicable local codes, including IPC and IFGC requirements where relevant. Shut off the water supply or recover refrigerant from the system before cutting into any existing line. Ensure tubing ends are cut cleanly, deburred, and fully seated before completing the connection. Do not overtighten or force fittings onto tubing that does not match the stated OD dimensions.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet OD\u003c\/strong\u003e: 5\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet OD\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration\u003c\/strong\u003e: Straight Reducing Coupling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: RELIANCE WORLDWIDE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 04357\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RELIANCE WORLDWIDE","offers":[{"title":"Default Title","offer_id":51233265582386,"sku":"04357","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307613591.jpg?v=1780095691","url":"https:\/\/voomisupply.com\/products\/reliance-worldwide-04357-straight-reducing-coupling","provider":"Voomi Supply","version":"1.0","type":"link"}