{"product_id":"centrotherm-icvl351-innoflue-concentric-vent-length-3-or-5-inches-id-x-5-5-inches-od-x-14-5-inches-l-polypropylene-gray-white","title":"Centrotherm icvl351 Innoflue Concentric Vent Length 3 or 5 Inches Id X 5.5 Inches Od X 14.5 Inches L Polypropylene Gray White","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CENTROTHERM ICVL351 is a rigid polypropylene concentric vent length designed for use in direct vent heating systems. It is part of the InnoFlue product line and is built for installers and HVAC technicians who need a reliable, code-compliant venting solution for high-efficiency condensing appliances such as boilers, furnaces, and water heaters. Concentric venting allows both the combustion air intake and the flue exhaust to travel through a single pipe assembly, simplifying installation and reducing the number of wall or roof penetrations needed. This makes the ICVL351 a practical choice for retrofit and new construction applications alike. The pipe accepts an inner diameter of 3 or 5 inches and has an outer diameter of 5.5 inches, making it compatible with common residential and light commercial venting configurations. The overall length is 14.5 inches, and the male end can be field cut and chamfered to fit specific installation requirements. The female end includes an internal gasket that creates a secure, leak-resistant seal when connected to a matching fitting. The outer sleeve is constructed with a metal outer layer for added structural integrity. The gray and white finish blends with standard vent system aesthetics. Polypropylene is widely used in condensing appliance venting because it resists the acidic condensate produced by high-efficiency units, making it more durable in this application than traditional PVC or metal alternatives. HVAC professionals recognize polypropylene vent systems as a preferred material for Category IV appliances. The ICVL351 is domestically produced and meets the demanding standards required for safe flue gas management in modern heating systems.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRigid polypropylene construction resists corrosive condensate from high-efficiency condensing appliances\u003c\/li\u003e\n\u003cli\u003eFemale end includes an internal gasket for a secure, leak-resistant connection\u003c\/li\u003e\n\u003cli\u003eMale end is field-cuttable and chamferable to meet exact installation length requirements\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\u003cp\u003eThe CENTROTHERM ICVL351 InnoFlue concentric vent length delivers a durable and flexible venting solution for condensing boilers, furnaces, and water heaters. Its polypropylene construction and field-adjustable male end make it well suited for a wide range of direct vent installation scenarios.\u003c\/p\u003e\u003ch3\u003eProduct Information\u003c\/h3\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: CENTROTHERM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: ICVL351\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter\u003c\/strong\u003e: 3 or 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 5.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 14.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Polypropylene\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Gray and White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDomestic or Import\u003c\/strong\u003e: Domestic\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CENTROTHERM","offers":[{"title":"Default Title","offer_id":51120839917874,"sku":"ICVL351","price":83.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/304881853.jpg?v=1777741051","url":"https:\/\/voomisupply.com\/products\/centrotherm-icvl351-innoflue-concentric-vent-length-3-or-5-inches-id-x-5-5-inches-od-x-14-5-inches-l-polypropylene-gray-white","provider":"Voomi Supply","version":"1.0","type":"link"}