{"product_id":"636-358","title":"636-358","description":"This 3-inch PVC S636 FGV Coupling is a high-quality fitting designed for secure connections in flue gas venting systems. Engineered specifically for high-efficiency gas appliances, this white coupling ensures a durable and airtight seal between two sections of 3-inch PVC pipe. As a System 636 certified component, it is rated for the specific temperature and safety requirements of modern HVAC exhaust systems. This coupling is an essential part for furnace, boiler, and water heater installations where reliable gas venting is critical. Its Schedule 40 construction provides excellent structural integrity and resistance to the corrosive conditions often found in high-efficiency appliance drainage and exhaust lines.\u003cbr\u003e\nType: PVC Flue Gas Venting (FGV) Coupling\u003cbr\u003e\nSize: 3 Inch\u003cbr\u003e\nApplication: Ideal for high-efficiency condensing gas furnaces, boilers, and tankless water heaters requiring certified S636 flue gas venting.\u003cbr\u003e\nSpecifications: System 636 (S636) certified for gas venting, Schedule 40 PVC construction, white finish, solvent weld socket ends.","brand":"BCFurnace","offers":[{"title":"3\" PVC FGV COUPLING WHITE S636 \/ 636-358","offer_id":47827575734557,"sku":null,"price":45.27,"currency_code":"CAD","in_stock":true},{"title":"3\" PVC FGV COUPLING WHITE S636 \/ 7648459","offer_id":47827575767325,"sku":null,"price":45.27,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/f8c8568b6797432eb541ce65a4922b11.webp?v=1773960509","url":"https:\/\/bcfurnace.myshopify.com\/products\/636-358","provider":"BCFurnace","version":"1.0","type":"link"}