{"product_id":"fernco-inc-p1056-43-flexible-reducing-coupling-4x3","title":"Fernco Inc P1056-43 Flexible Reducing Coupling 4x3","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe FERNCO INC P1056-43 is a flexible reducing coupling designed to join 4-inch pipe to 3-inch pipe in drain, waste, and vent (DWV) systems. It uses a shear-ring design with two stainless steel clamps that compress a flexible elastomeric sleeve to create a leak-resistant, no-hub connection. Licensed plumbers install this fitting when transitioning between different pipe diameters in underground or above-grade piping runs. The stainless steel clamps provide corrosion resistance and consistent clamping torque across the sleeve.\u003c\/p\u003e\n\u003cp\u003eThis coupling is suited for residential and light commercial plumbing applications where a reducer is needed between dissimilar or same-material pipe sections. It connects cast iron pipe to cast iron pipe, plastic pipe to plastic pipe, or cast iron pipe to plastic pipe. Typical installation scenarios include stack repairs, building drain transitions, and retrofit connections where rigid couplings are impractical due to pipe misalignment or vibration.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eReduces from 4-inch to 3-inch pipe in a single fitting\u003c\/li\u003e\n  \u003cli\u003eTwo stainless steel clamps included for secure, even compression\u003c\/li\u003e\n  \u003cli\u003eFlexible elastomeric sleeve accommodates minor pipe misalignment\u003c\/li\u003e\n  \u003cli\u003eConnects cast iron or plastic to cast iron or plastic pipe\u003c\/li\u003e\n  \u003cli\u003eNo-hub design eliminates the need for solvent cement or lead and oakum\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and new-installation fitting for 4-inch to 3-inch no-hub DWV pipe connections in residential and commercial plumbing systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a licensed plumber in accordance with local plumbing codes and the IPC or applicable adopted code. Shut off flow and ensure the pipe ends are clean, deburred, and free of sharp edges before sliding the coupling into position. Tighten the stainless steel clamps evenly using a torque-limiting screwdriver or nut driver to the coupling manufacturer's specified procedure. Do not over-drive the clamps, as over-compression can damage the elastomeric sleeve.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInlet Size\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutlet Size\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClamp Material\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Clamps\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Pipe Materials\u003c\/strong\u003e: Cast Iron, Plastic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 45 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: EA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 40\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: FERNCO INC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: P1056-43\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"FERNCO","offers":[{"title":"Default Title","offer_id":51524711645490,"sku":"P1056-43","price":323.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f60ae3f7142a3701496b8c95a6a41149_ef43dca1-48a5-4c6e-bfa2-ca6e0315cfee.jpg?v=1785456113","url":"https:\/\/voomisupply.com\/products\/fernco-inc-p1056-43-flexible-reducing-coupling-4x3","provider":"Voomi Supply","version":"1.0","type":"link"}