{"product_id":"nibco-3-8-in-sweat-x-1-4-in-d-sweat-copper-reducing-coupling","title":"NIBCO 3\/8 in. Sweat X 1\/4 in. D Sweat Copper Reducing Coupling","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the NIBCO 3\/8 in. Sweat x 1\/4 in. Sweat Copper Reducing Coupling—a lead-free copper fitting engineered for reliable, soldered connections between a 3\/8 in line and a 1\/4 in line. This two-end reducer is built for durability in residential and light commercial plumbing, delivering a clean, compact transition in cramped spaces.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEnd 1 diameter: 3\/8 in; End 1 type: Sweat\u003c\/li\u003e \u003cli\u003eEnd 2 diameter: 1\/4 in; End 2 type: Sweat\u003c\/li\u003e \u003cli\u003eMaterial: Lead-free copper\u003c\/li\u003e \u003cli\u003eMaximum Working Pressure: 912 psi\u003c\/li\u003e \u003cli\u003eMaximum Working Temperature: 400°F\u003c\/li\u003e \u003cli\u003eNSF Listing: Yes\u003c\/li\u003e \u003cli\u003eCompatible Pipe Material: Copper\u003c\/li\u003e \u003cli\u003ePackage Type: Bagged; Quantity: 1 piece\u003c\/li\u003e \u003cli\u003eBrand: NIBCO; Product Type: Reducing Coupling\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this reducing coupling matters\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eLead-free copper ensures safer drinking water and long-term reliability in both hot and cold lines.\u003c\/li\u003e \u003cli\u003eSweat (solder) ends on both sides provide a robust, watertight joint when installed with standard flux and soldering techniques.\u003c\/li\u003e \u003cli\u003eThe 3\/8 in to 1\/4 in reduction is ideal for compact transitions in tight spaces where traditional fittings won’t fit.\u003c\/li\u003e \u003cli\u003eHigh pressure rating (912 psi) makes it suitable for common domestic water systems and many radiant or distribution layouts.\u003c\/li\u003e \u003cli\u003eNSF-listed, so you have an extra level of confidence in compliance and safety for potable-water applications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cp\u003eUse this NIBCO copper reducing coupling to connect a 3\/8 in copper supply line to a 1\/4 in branch line in under-sink plumbing, appliance connections, or compact distribution runs. It’s particularly valuable when space is limited and a reliable, soldered joint is preferred over crimp or push-to-connect styles. Perfect for new installations and reliable repairs where copper piping is the material of choice.\u003c\/p\u003e \u003ch3\u003eInstallation tips\u003c\/h3\u003e\n\u003col\u003e \u003cli\u003eCut the copper pipe ends cleanly and squarely; deburr the inner edge for a smooth fit.\u003c\/li\u003e \u003cli\u003eClean the pipe ends and inside of the fitting to remove oxidation and ensure a strong solder joint.\u003c\/li\u003e \u003cli\u003eApply an even layer of flux to the outside of the pipe and the inside of the fitting.\u003c\/li\u003e \u003cli\u003eAssemble the reducing coupling, and heat evenly with a compatible flame until the solder flows and seals the joint.\u003c\/li\u003e \u003cli\u003eWipe away excess flux, allow the joint to cool, and test for leaks with a soap-and-water solution or pressure test.\u003c\/li\u003e\n\u003c\/ol\u003e \u003cp\u003eWith its lead-free copper construction, reliable sweat joints, and a compact 3\/8 in to 1\/4 in reduction, this NIBCO fitting is a practical, long-lasting choice for anyone working with copper piping. It’s designed to perform consistently under typical household water pressures and temperatures, helping you complete plumbing projects smoothly and with confidence.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Nibco","offers":[{"title":"Default Title","offer_id":52201780609298,"sku":"4028825","price":5.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0928\/1024\/8466\/files\/4028825_A.eps_High.jpg?v=1776380267","url":"https:\/\/nationalhardwaregroup.com\/products\/nibco-3-8-in-sweat-x-1-4-in-d-sweat-copper-reducing-coupling","provider":"National Hardware Group","version":"1.0","type":"link"}