{"product_id":"duravent-25-flex-pipe-length-duraflex-316-stainless-steel","title":"DuraVent 25' Flex Pipe Length DuraFlex 316 Stainless Steel","description":"\u003ch3 style=\"text-align: center;\"\u003eDuraVent 25' Flex Pipe Length DuraFlex 316 Stainless Steel\u003c\/h3\u003e\n\u003cp data-start=\"0\" data-end=\"765\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe \u003cstrong data-start=\"4\" data-end=\"59\"\u003eDuraVent 25' DuraFlex 316 Stainless Steel Flex Pipe\u003c\/strong\u003e is a premium flexible chimney liner designed for dependable masonry chimney relining and high-performance venting applications. Manufactured from highly corrosion-resistant 316 stainless steel, this 25-foot chimney liner is ideal for wood-burning fireplaces, wood stoves, non-condensing gas appliances, oil-fired systems, and coal-burning applications where additional corrosion protection is required. Its lightweight, flexible construction allows easier installation in chimneys with minimal offsets while maintaining efficient flue gas flow and reliable draft performance. The DuraFlex 316 liner is UL 1777 and ULC S635 listed, providing safe and code-compliant chimney venting.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"767\" data-end=\"1344\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eEngineered for durability, the DuraFlex 316 stainless steel chimney liner helps protect masonry chimneys from heat, moisture, and corrosive combustion byproducts while improving overall heating system efficiency. This 25-foot flexible chimney liner is an excellent solution for fireplace inserts, furnaces, boilers, and solid-fuel appliances, delivering long-lasting performance in demanding environments. Backed by DuraVent’s trusted chimney venting technology, it provides a professional-grade solution for residential and commercial chimney restoration projects.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"f0ilry\" data-start=\"0\" data-end=\"189\"\u003e\n\u003cstrong data-start=\"2\" data-end=\"58\" data-is-only-node=\"\"\u003eDuraVent 25' DuraFlex 316 Stainless Steel Flex Pipe:\u003c\/strong\u003e Premium 25-foot flexible chimney liner designed for reliable masonry chimney relining and efficient venting performance.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"lc1uxa\" data-start=\"190\" data-end=\"408\"\u003e\n\u003cstrong data-start=\"192\" data-end=\"240\" data-is-only-node=\"\"\u003eHeavy-Duty 316 Stainless Steel Construction:\u003c\/strong\u003e Manufactured with high-quality \u003cstrong data-start=\"272\" data-end=\"301\"\u003e316 stainless steel alloy\u003c\/strong\u003e for superior strength, durability, and long-term corrosion resistance in demanding chimney applications.\u003c\/li\u003e\n\u003cli data-section-id=\"a6dmq7\" data-start=\"409\" data-end=\"605\"\u003e\n\u003cstrong data-start=\"411\" data-end=\"456\" data-is-only-node=\"\"\u003eCompatible with Multiple Appliance Types:\u003c\/strong\u003e Designed for use with solid fuel, non-condensing gas, and oil appliances, including wood stoves, fireplace inserts, furnaces, and boilers.\u003c\/li\u003e\n\u003cli data-section-id=\"f097z3\" data-start=\"606\" data-end=\"817\"\u003e\n\u003cstrong data-start=\"608\" data-end=\"664\" data-is-only-node=\"\"\u003eEnhanced Corrosion Resistance for Coal Applications:\u003c\/strong\u003e The\u003cstrong\u003e \u003c\/strong\u003e316 stainless steel chimney liner provides additional protection when burning coal or sulfur-rich oils, helping extend liner service life.\u003c\/li\u003e\n\u003cli data-section-id=\"94kbhx\" data-start=\"818\" data-end=\"989\"\u003e\n\u003cstrong data-start=\"820\" data-end=\"854\" data-is-only-node=\"\"\u003eFlexible Chimney Liner Design:\u003c\/strong\u003e Easily navigates chimney offsets for simpler installation while supporting proper draft performance and efficient flue gas flow.\u003c\/li\u003e\n\u003cli data-section-id=\"12ogdf7\" data-start=\"990\" data-end=\"1155\"\u003e\n\u003cstrong data-start=\"992\" data-end=\"1035\" data-is-only-node=\"\"\u003eIdeal for Chimney Restoration Projects:\u003c\/strong\u003e Perfect for masonry chimney relining, fireplace insert installations, and chimney liner replacement applications.\u003c\/li\u003e\n\u003cli data-section-id=\"jq1sk5\" data-start=\"1156\" data-end=\"1319\"\u003e\n\u003cstrong data-start=\"1158\" data-end=\"1190\" data-is-only-node=\"\"\u003eImproves Venting Efficiency:\u003c\/strong\u003e Helps restore chimney performance by providing a durable pathway for exhaust gases and protecting existing chimney structures.\u003c\/li\u003e\n\u003cli data-section-id=\"h6h5in\" data-start=\"1320\" data-end=\"1498\"\u003e\n\u003cstrong data-start=\"1322\" data-end=\"1361\" data-is-only-node=\"\"\u003eProfessional-Grade DuraFlex Series:\u003c\/strong\u003e Part of the trusted DuraVent DuraFlex 316 liner system, engineered for dependable residential and commercial heating applications.\u003c\/li\u003e\n\u003cli data-section-id=\"tgm4el\" data-start=\"1499\" data-end=\"1672\"\u003e\n\u003cstrong data-start=\"1501\" data-end=\"1538\" data-is-only-node=\"\"\u003eUL Listed Chimney Liner Solution:\u003c\/strong\u003e Designed to meet industry safety standards for flexible stainless steel chimney liners and professional relining installations.\u003c\/li\u003e\n\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\u003ctd style=\"width: 193.802px;\"\u003eFlex Length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e3DF316-25\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e3\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e25 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e4DF316-25\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e4\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e25 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e5DF316-25\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e5\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e25 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e55DF316-25\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e5.5\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e25 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e6DF316-25\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e6\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e25 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e7DF316-25\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e7\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e25 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e8DF316-25\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e8\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e25 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eMaterials\u003c\/td\u003e\n\u003ctd style=\"width: 372px;\" colspan=\"2\"\u003e316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd style=\"width: 372px;\" colspan=\"2\"\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;\" colspan=\"2\"\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;\" colspan=\"2\"\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;\" colspan=\"2\"\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;\" colspan=\"2\"\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\u003eDownload Product 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\u003eDownload Instruction Manual\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DuraVent","offers":[{"title":"25 \/ 3 X 25'","offer_id":53631907430691,"sku":"3DF316-25","price":659.0,"currency_code":"USD","in_stock":true},{"title":"25 \/ 4 X 25'","offer_id":55329921728803,"sku":"4DF316-25","price":846.0,"currency_code":"USD","in_stock":true},{"title":"25 \/ 5 X 25'","offer_id":55329921761571,"sku":"5DF316-25","price":1043.0,"currency_code":"USD","in_stock":true},{"title":"25 \/ 5.5 X 25'","offer_id":55329921794339,"sku":"5.5DF316-25","price":1139.0,"currency_code":"USD","in_stock":true},{"title":"25 \/ 6 X 25'","offer_id":55329921827107,"sku":"6DF316-25","price":1268.0,"currency_code":"USD","in_stock":true},{"title":"25 \/ 7 X 25'","offer_id":55329921859875,"sku":"7DF316-25","price":1457.0,"currency_code":"USD","in_stock":true},{"title":"25 \/ 8 X 25'","offer_id":55329921892643,"sku":"8DF316-25","price":1523.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/6926\/8771\/files\/DuraVent-25_-Flex-Pipe-Length-DuraFlex-316-Stainless-Steel-DuraVent-Dreamwood-Living-26055239.jpg?v=1780434839","url":"https:\/\/www.dreamwoodliving.com\/products\/duravent-25-flex-pipe-length-duraflex-316-stainless-steel","provider":"Dreamwood Living","version":"1.0","type":"link"}