{"product_id":"duravent-3-8-inner-diameter-duraflex-insert-adapter","title":"DuraVent 3\"-8\" Inner Diameter DuraFlex Insert Adapter","description":"\u003ch3 style=\"text-align: center;\"\u003eDuraVent 3\"-8\" Inner Diameter DuraFlex Insert Adapter\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDuraVent 3\"-8\" Inner Diameter DuraFlex Insert Adapter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a premium \u003c\/span\u003echimney liner connector engineered to create a secure connection between DuraFlex flexible stainless steel chimney liners and fireplace inserts or heating appliances. Compatible with 3-inch to 8-inch inner diameter DuraFlex liners, this adapter is ideal for chimney relining projects, helping ensure proper flue gas flow, chimney draft, and appliance efficiency for wood-burning, non-condensing gas, and oil-fired systems.\u003c\/p\u003e\n\u003cp\u003eDesigned for dependable performance in masonry chimney restoration, the DuraFlex Insert Adapter provides a durable, reliable connection for professional and residential installations. It works seamlessly with DuraFlex Pro, DuraFlex 316, DuraFlex 304, and DuraFlex SW chimney liners\u003cspan\u003e, supporting safe, code-compliant venting. This DuraVent accessory enhances the durability and performance of flexible chimney liner systems while simplifying fireplace insert installations and long-term chimney maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"774d0563-5bc5-40b6-bb6f-26d308cd3119\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"774d0563-5bc5-40b6-bb6f-26d308cd3119\" data-turn-id-container=\"774d0563-5bc5-40b6-bb6f-26d308cd3119\" data-testid=\"conversation-turn-2020\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"6b616eaf-d8d3-41db-a133-c926d40ad34b\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cul data-start=\"0\" data-end=\"1284\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"cbw2s7\" data-start=\"0\" data-end=\"220\"\u003e\n\u003cstrong data-start=\"2\" data-end=\"41\" data-is-only-node=\"\"\u003eSecure Fireplace Insert Connection:\u003c\/strong\u003e The\u003cstrong\u003e \u003c\/strong\u003eDuraVent DuraFlex Insert Adapter is designed to securely connect DuraFlex flexible stainless steel chimney liners to fireplace inserts with a flat surface outlet.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"sg795g\" data-start=\"221\" data-end=\"402\"\u003e\n\u003cstrong data-start=\"223\" data-end=\"265\" data-is-only-node=\"\"\u003eCompatible with 3\"–8\" DuraFlex Liners:\u003c\/strong\u003e Fits 3-inch to 8-inch inner diameter DuraFlex chimney liners, making it ideal for a wide range of chimney relining applications.\u003c\/li\u003e\n\u003cli data-section-id=\"pgojby\" data-start=\"403\" data-end=\"595\"\u003e\n\u003cstrong data-start=\"405\" data-end=\"453\" data-is-only-node=\"\"\u003eOptimized for Flat Outlet Fireplace Inserts:\u003c\/strong\u003e Provides a reliable connection between the chimney liner and insert appliance, helping ensure proper flue gas flow and chimney draft.\u003c\/li\u003e\n\u003cli data-section-id=\"ck4ojz\" data-start=\"596\" data-end=\"769\"\u003e\n\u003cstrong data-start=\"598\" data-end=\"639\" data-is-only-node=\"\"\u003eImproves Chimney Venting Performance:\u003c\/strong\u003e Helps maintain heating appliance efficiency by creating a secure transition between the flexible liner and the insert outlet.\u003c\/li\u003e\n\u003cli data-section-id=\"1cgxo8g\" data-start=\"770\" data-end=\"935\"\u003e\n\u003cstrong data-start=\"772\" data-end=\"818\" data-is-only-node=\"\"\u003eDurable Stainless Steel Chimney Accessory:\u003c\/strong\u003e Built for long-lasting performance in demanding wood-burning, non-condensing gas, and oil-fired venting systems.\u003c\/li\u003e\n\u003cli data-section-id=\"1aq47zs\" data-start=\"936\" data-end=\"1094\"\u003e\n\u003cstrong data-start=\"938\" data-end=\"982\" data-is-only-node=\"\"\u003eProfessional Chimney Relining Component:\u003c\/strong\u003e Ideal for masonry chimney restoration, fireplace insert installations, and flexible chimney liner upgrades.\u003c\/li\u003e\n\u003cli data-section-id=\"10qu1ux\" data-start=\"1095\" data-end=\"1284\" data-is-last-node=\"\"\u003e\n\u003cstrong data-start=\"1097\" data-end=\"1141\" data-is-only-node=\"\"\u003eReliable DuraVent Installation Solution:\u003c\/strong\u003e A high-quality DuraVent chimney liner adapter engineered for safe, efficient, and code-compliant chimney venting system installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 520px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003eSize\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e3DFS-ADC\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e3\" Inner Diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e4DFS-ADC\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e4\" Inner Diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e5DFS-ADC\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e5\" Inner Diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e55DFS-ADC\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e5.5\" Inner Diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e6DFS-ADC\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e6\" Inner Diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e7DFS-ADC\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e7\" Inner Diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e8DFS-ADC\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e8\" Inner Diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd style=\"width: 372px;\"\u003eSingle-Wall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eClearance\u003c\/td\u003e\n\u003ctd style=\"width: 372px;\"\u003e0” clearance for gas, oil, and pellet applications.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eClearance\u003c\/td\u003e\n\u003ctd style=\"width: 372px;\"\u003e1” clearance to masonry for wood-burning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eListings\u003c\/td\u003e\n\u003ctd style=\"width: 372px;\"\u003eListed to UL 1777 and ULC S635 (MH45609).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"width: 372px;\"\u003eLimited lifetime warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDownloads\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0100\/7917\/4734\/files\/DuraFlex_Catalog.pdf?v=1652650777\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eProduct Catalog\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0100\/7917\/4734\/files\/DuraFlex_Installation_Manual.pdf?v=1652650795\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eInstruction Manual\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DuraVent","offers":[{"title":"3\"","offer_id":47478999810339,"sku":"3DFS-ADC","price":120.0,"currency_code":"USD","in_stock":true},{"title":"4\"","offer_id":47478999875875,"sku":"4DFS-ADC","price":120.0,"currency_code":"USD","in_stock":true},{"title":"5\"","offer_id":47478999908643,"sku":"5DFS-ADC","price":132.0,"currency_code":"USD","in_stock":true},{"title":"5.5\"","offer_id":47478999941411,"sku":"55DFS-ADC","price":132.0,"currency_code":"USD","in_stock":true},{"title":"6\"","offer_id":47478999974179,"sku":"6DFS-ADC","price":144.0,"currency_code":"USD","in_stock":true},{"title":"7\"","offer_id":47479000006947,"sku":"7DFS-ADC","price":144.0,"currency_code":"USD","in_stock":true},{"title":"8\"","offer_id":47479000039715,"sku":"8DFS-ADC","price":144.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/6926\/8771\/files\/DuraVent-3_-8_-Inner-Diameter-DuraFlex-Insert-Adapter-DuraVent-Dreamwood-Living-26046398.jpg?v=1780434794","url":"https:\/\/www.dreamwoodliving.com\/products\/duravent-3-8-inner-diameter-duraflex-insert-adapter","provider":"Dreamwood Living","version":"1.0","type":"link"}