{"product_id":"multi-fittings-78331-pvc-expansion-joint-coupling-1-1-4-in","title":"Multi Fittings 78331 Pvc Expansion Joint Coupling 1-1\/4 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MULTI FITTINGS 78331 is a PVC expansion joint coupling designed to accommodate thermal expansion and contraction in rigid PVC conduit systems. Sized for 1-1\/4 inch trade conduit, it spans a total length range of 13 by 9 inches and measures 2 inches in width, giving the installer meaningful travel range to handle seasonal or installation-related movement. This fitting is an essential component wherever rigid conduit runs long distances or crosses expansion joints in structures. Electricians and conduit installers use this type of coupling to prevent stress cracking, joint separation, and conduit misalignment caused by temperature-driven dimensional changes.\u003c\/p\u003e\n\u003cp\u003eThis expansion joint coupling is suited for rigid PVC conduit installations in commercial and industrial electrical applications. It is commonly installed in long conduit runs on building exteriors, parking structures, and large concrete slabs where significant temperature swings occur. The fitting handles movement without breaking the conduit system's integrity, making it appropriate for both new construction and retrofit conduit work where thermal movement must be managed.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eConstructed from PVC for corrosion resistance and compatibility with rigid PVC conduit systems\u003c\/li\u003e\n  \u003cli\u003e1-1\/4 inch trade size fits standard rigid PVC conduit of that diameter\u003c\/li\u003e\n  \u003cli\u003e13 by 9 inch length range provides adequate travel for thermal expansion and contraction cycles\u003c\/li\u003e\n  \u003cli\u003e2 inch width supports stable seating within the conduit run\u003c\/li\u003e\n  \u003cli\u003eDesigned specifically for use with rigid conduit, maintaining system continuity through movement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and standard-fit coupling for 1-1\/4 inch rigid PVC conduit systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed electricians in accordance with applicable NEC requirements for conduit expansion fittings. Power down and lock out all circuits in the conduit run before servicing or replacing any conduit fitting. Solvent cement appropriate for PVC conduit should be used at joints per manufacturer instructions, and adequate time must be allowed for cure before pulling wire. Do not over-stress the fitting during alignment; the conduit run should be properly supported on both sides of the expansion joint.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrade Size\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: PVC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 13 x 9 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuitable For Use With\u003c\/strong\u003e: Rigid Conduit\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: MULTI FITTINGS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 78331\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MULTI FITTINGS","offers":[{"title":"Default Title","offer_id":51619410379058,"sku":"078331","price":56.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9c8bd9e95985404014fa65cad306123d_d87f994a-7dda-44e1-8c06-ce8543d94bb6.jpg?v=1787329153","url":"https:\/\/voomisupply.com\/products\/multi-fittings-78331-pvc-expansion-joint-coupling-1-1-4-in","provider":"Voomi Supply","version":"1.0","type":"link"}