{"product_id":"proline-bk-proucts-3-in-hub-sizes-x-3-in-d-hub-sizes-neoprene-stainless-steel-no-hub-coupling","title":"ProLine BK Proucts 3 in. Hub Sizes X 3 in. D Hub Sizes Neoprene\/Stainless Steel No Hub Coupling","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the ProLine BK Proucts 3 in. No Hub Coupling—a purpose-built, two-end hub connector designed for 3-inch piping. Crafted from a durable neoprene gasket paired with stainless steel hardware, this coupling delivers a reliable, flexible seal that stands up to everyday plumbing challenges while accommodating slight misalignment.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eTwo 3\" hub ends\u003c\/strong\u003e — precisely sized for hub-to-hub connections on both sides, enabling straightforward 3-inch piping installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial integrity\u003c\/strong\u003e — neoprene compression gasket with stainless steel components provides chemical resistance, corrosion resistance, and enduring flexibility.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLead-free construction\u003c\/strong\u003e — designed with safety in mind, offering a lead-free solution for plumbing applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTemperature rating\u003c\/strong\u003e — capable of handling temperatures up to 220°F (104°C), suitable for typical drainage, vent, and hot-water scenarios within standard practices.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCertifications\u003c\/strong\u003e — not IAPMO certified and not NSF listed, so verify compatibility with local codes for specific potable-water or regulated applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePackage\u003c\/strong\u003e — sold as a single piece for easy replacement or installation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters in real-world use: the combination of neoprene and stainless steel delivers a dependable seal that tolerates minor pipe movement and environmental exposure, reducing the likelihood of leaks over time. The 3-inch hub-to-hub configuration makes it a practical choice for quick repairs, retrofits, or new installations where 3\" hub piping is standard.\u003c\/p\u003e \u003cp\u003eIdeal for:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eConnecting or repairing 3\" hub piping in drainage and vent systems\u003c\/li\u003e \u003cli\u003eRetrofits where existing hub connections require a flexible, secure coupling\u003c\/li\u003e \u003cli\u003eResidential or light commercial plumbing tasks needing a robust, lead-free solution\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical tips:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eClean both pipe ends thoroughly before installation to ensure a clean, effective seal.\u003c\/li\u003e \u003cli\u003eMatch the 3\" hub size on both ends to your pipes for proper fitment.\u003c\/li\u003e \u003cli\u003eHand-tighten clamps evenly, then apply a steady, uniform tighten to avoid over-compressing the neoprene gasket.\u003c\/li\u003e \u003cli\u003eAfter installation, test for leaks with soapy water and re-tighten if needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Proline","offers":[{"title":"Default Title","offer_id":52201789194514,"sku":"4031766","price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0928\/1024\/8466\/files\/4031766_A.eps_High.jpg?v=1776380346","url":"https:\/\/nationalhardwaregroup.com\/products\/proline-bk-proucts-3-in-hub-sizes-x-3-in-d-hub-sizes-neoprene-stainless-steel-no-hub-coupling","provider":"National Hardware Group","version":"1.0","type":"link"}