{"product_id":"duravent-20-flex-pipe-length-duraflex-304-stainless-steel-basic-kit","title":"DuraVent 20' Flex Pipe Length DuraFlex 304 Stainless Steel Basic Kit","description":"\u003ch3 style=\"text-align: center;\"\u003eDuraVent 20' Flex Pipe Length DuraFlex 304 Stainless Steel Basic Kit\u003c\/h3\u003e\n\u003cp data-start=\"0\" data-end=\"657\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe \u003cstrong data-start=\"4\" data-end=\"59\"\u003eDuraVent 20' DuraFlex 304 Stainless Steel Basic Kit\u003c\/strong\u003e is a premium chimney liner kit designed for efficient masonry chimney relining in residential and commercial heating systems. Featuring a 20-foot flexible 304 stainless steel chimney liner, this kit is ideal for wood-burning fireplaces, wood stoves, non-condensing gas appliances, and oil-fired heating equipment with minimal chimney offsets. Its lightweight yet durable construction allows for easier installation while delivering dependable venting performance. The DuraFlex 304 system is UL 1777 and ULC S635 listed, ensuring trusted safety, durability, and code compliance.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"659\" data-end=\"1243\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eBuilt for long-lasting reliability, the DuraFlex 304 stainless steel chimney liner kit helps improve flue gas flow while protecting masonry chimneys from corrosion, heat, and condensation. This 20-foot chimney liner basic kit is an excellent choice for chimney restoration, fireplace inserts, furnaces, boilers, and oil heating systems, offering a complete solution for vent upgrades. Engineered by DuraVent for professional performance, it provides outstanding flexibility, efficient operation, and dependable protection for modern heating appliance venting applications.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"98x3p2\" data-start=\"0\" data-end=\"191\"\u003e\n\u003cstrong data-start=\"2\" data-end=\"58\" data-is-only-node=\"\"\u003eDuraVent 20' DuraFlex 304 Stainless Steel Basic Kit:\u003c\/strong\u003e Complete flexible chimney liner kit designed for reliable masonry chimney relining and professional venting installations.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1hwwbtx\" data-start=\"192\" data-end=\"390\"\u003e\n\u003cstrong data-start=\"194\" data-end=\"239\" data-is-only-node=\"\"\u003ePremium 304 Stainless Steel Construction:\u003c\/strong\u003e Manufactured with durable 304 stainless steel chimney liner material for excellent corrosion resistance, strength, and long-lasting performance.\u003c\/li\u003e\n\u003cli data-section-id=\"10sagxe\" data-start=\"391\" data-end=\"545\"\u003e\n\u003cstrong data-start=\"393\" data-end=\"428\" data-is-only-node=\"\"\u003e20-Foot Flexible Chimney Liner:\u003c\/strong\u003e Includes a 20-foot flex pipe length to support chimney restoration projects and extended venting applications.\u003c\/li\u003e\n\u003cli data-section-id=\"12fslxc\" data-start=\"546\" data-end=\"735\"\u003e\n\u003cstrong data-start=\"548\" data-end=\"578\" data-is-only-node=\"\"\u003eMultiple Diameter Options:\u003c\/strong\u003e Available in 3\" to 8\" diameters, providing compatibility with a variety of wood stoves, fireplaces, furnaces, boilers, and oil heating appliances.\u003c\/li\u003e\n\u003cli data-section-id=\"1wpbq16\" data-start=\"736\" data-end=\"883\"\u003e\n\u003cstrong data-start=\"738\" data-end=\"766\" data-is-only-node=\"\"\u003eFlexible Length Choices:\u003c\/strong\u003e Offered in 15', 20', 25', 30', and 35' lengths to meet different chimney height and installation requirements.\u003c\/li\u003e\n\u003cli data-section-id=\"q5b860\" data-start=\"884\" data-end=\"1053\"\u003e\n\u003cstrong data-start=\"886\" data-end=\"930\" data-is-only-node=\"\"\u003eDesigned for Multiple Fuel Applications:\u003c\/strong\u003e Suitable for solid fuel, non-condensing gas, and oil-fired appliances requiring a dependable chimney liner solution.\u003c\/li\u003e\n\u003cli data-section-id=\"11lth88\" data-start=\"1054\" data-end=\"1226\"\u003e\n\u003cstrong data-start=\"1056\" data-end=\"1088\" data-is-only-node=\"\"\u003eSimplifies Chimney Relining:\u003c\/strong\u003e Flexible design helps navigate chimney pathways while reducing installation challenges in masonry chimney systems with minimal offsets.\u003c\/li\u003e\n\u003cli data-section-id=\"3nh0qn\" data-start=\"1227\" data-end=\"1396\"\u003e\n\u003cstrong data-start=\"1229\" data-end=\"1264\" data-is-only-node=\"\"\u003eUL Listed Chimney Liner System:\u003c\/strong\u003e Part of the trusted DuraVent DuraFlex 304 series, providing a safe and reliable UL 1777 listed chimney relining solution.\u003c\/li\u003e\n\u003cli data-section-id=\"rofrh0\" data-start=\"1397\" data-end=\"1547\"\u003e\n\u003cstrong data-start=\"1399\" data-end=\"1441\" data-is-only-node=\"\"\u003eProfessional Venting Upgrade Solution:\u003c\/strong\u003e Ideal for fireplace inserts, wood-burning stoves, gas appliances, and chimney restoration projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 520px; height: 274.313px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 128px; height: 19.5938px;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px; height: 19.5938px;\"\u003eSize\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px; height: 19.5938px;\"\u003eFlex Length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 128px; height: 19.5938px;\"\u003e3DF304-20K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px; height: 19.5938px;\"\u003e3\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px; height: 19.5938px;\"\u003e20 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 128px; height: 19.5938px;\"\u003e4DF304-20K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px; height: 19.5938px;\"\u003e4\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px; height: 19.5938px;\"\u003e\u003cspan\u003e20 ft.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 128px; height: 19.5938px;\"\u003e5DF304-20K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px; height: 19.5938px;\"\u003e5\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px; height: 19.5938px;\"\u003e\u003cspan\u003e20 ft.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 128px; height: 19.5938px;\"\u003e55DF304-20K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px; height: 19.5938px;\"\u003e5.5\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px; height: 19.5938px;\"\u003e\u003cspan\u003e20 ft.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 128px; height: 19.5938px;\"\u003e6DF304-20K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px; height: 19.5938px;\"\u003e6\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px; height: 19.5938px;\"\u003e\u003cspan\u003e20 ft.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 128px; height: 19.5938px;\"\u003e7DF304-20K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px; height: 19.5938px;\"\u003e7\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px; height: 19.5938px;\"\u003e\u003cspan\u003e20 ft.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 128px; height: 19.5938px;\"\u003e8DF304-20K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px; height: 19.5938px;\"\u003e8\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px; height: 19.5938px;\"\u003e\u003cspan\u003e20 ft.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 128px; height: 19.5938px;\"\u003eMaterials\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 372px; height: 19.5938px;\"\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 128px; height: 19.5938px;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 372px; height: 19.5938px;\"\u003eSingle-Wall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 128px; height: 19.5938px;\"\u003eClearance\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 372px; height: 19.5938px;\"\u003e0” clearance for gas, oil, and pellet applications.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 128px; height: 19.5938px;\"\u003eClearance\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 372px; height: 19.5938px;\"\u003e1” clearance to masonry for wood-burning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 128px; height: 19.5938px;\"\u003eListings\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 372px; height: 19.5938px;\"\u003eListed to UL 1777 and ULC S635 (MH45609).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 128px; height: 19.5938px;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 372px; height: 19.5938px;\"\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":"15 \/ 3\"DF304 20 Kit","offer_id":53631907725603,"sku":"3DF304-20K","price":700.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 4\"DF304 20 Kit","offer_id":55325485564195,"sku":"4DF304-20K","price":821.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 5\"DF304 20 Kit","offer_id":55325485596963,"sku":"5DF304-20K","price":958.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 5.5\"DF304 20 Kit","offer_id":55325485629731,"sku":"55DF304-20K","price":1016.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 6\"DF304 20 Kit","offer_id":55325485662499,"sku":"6DF304-20K","price":1071.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 7\"DF304 20 Kit","offer_id":55325485695267,"sku":"7DF304-20K","price":1249.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 8\"DF304 20 Kit","offer_id":55325485728035,"sku":"8DF304-20K","price":1400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/6926\/8771\/files\/DuraVent-20_-Flex-Pipe-Length-DuraFlex-304-Stainless-Steel-Basic-Kit-DuraVent-Dreamwood-Living-25569583.jpg?v=1780433464","url":"https:\/\/www.dreamwoodliving.com\/products\/duravent-20-flex-pipe-length-duraflex-304-stainless-steel-basic-kit","provider":"Dreamwood Living","version":"1.0","type":"link"}