{"product_id":"copperfield-duravent-4-x-12-round-rigid-type-b-gas-vent-pipe","title":"Copperfield DuraVent 4\" x 12\" Round Rigid Type B Gas Vent Pipe","description":"\u003cp\u003eUse for venting listed natural gas or liquid propane Category I, draft hood appliances, or appliances that have been specifically tested and listed to use Type B Gas Vent. The appliances listed typically use Type B Gas Vent systems, but not always: Furnaces, Water Heaters, Boilers, Room Heaters, Decorative Gas Appliances, and Unit Heaters. To calculate installed length, subtract 1 1\/2\" from each connection of vent. A 1\" clearance (air space) to combustible materials must be maintained. To calculate OD add 5\/8\".\u003c\/p\u003e\n\u003ch1\u003eFeatures\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eFor Category 1 gas appliances\u003c\/li\u003e\n\u003cli\u003e1\" clearance to combustibles\u003c\/li\u003e\n\u003cli\u003eEasy-fit, twist-lock design with no fitting hassles\u003c\/li\u003e\n\u003cli\u003e0.012\" aluminum inner\u003c\/li\u003e\n\u003cli\u003e0.018\" galvanized outer\u003c\/li\u003e\n\u003cli\u003eOuter diameter is 5\/8\" larger than inner diameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eSpecifications\u003c\/h1\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"50%\"\u003eModel\u003c\/td\u003e\n\u003ctd width=\"50%\"\u003eCOP68404\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"50%\"\u003eProduct Size\u003c\/td\u003e\n\u003ctd width=\"50%\"\u003e4\" x 12\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Copperfield Chimney","offers":[{"title":"Default Title","offer_id":48164196122794,"sku":"COP68404","price":35.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0100\/7917\/4734\/files\/Copperfield-DuraVent-4-x-12-Round-Rigid-Type-B-Gas-Vent-Pipe.jpg?v=1775054759","url":"https:\/\/usfireplacestore.com\/products\/copperfield-duravent-4-x-12-round-rigid-type-b-gas-vent-pipe","provider":"US Fireplace Store","version":"1.0","type":"link"}