{"product_id":"638-108","title":"638-108","description":"This 4-inch to 5-inch metal vent increaser is a professional-grade ducting adapter designed to transition airflow from a smaller diameter pipe to a larger one. Ideal for a variety of residential and commercial ventilation needs, this increaser is commonly used with clothes dryers, kitchen range hoods, and bathroom exhaust fans to ensure a secure, airtight connection between different sizes of ductwork. Its durable metal construction provides excellent heat resistance and longevity, making it a reliable choice for high-temperature appliance venting. Whether you are performing an HVAC repair or installing a new appliance, this transition fitting helps optimize airflow efficiency and maintain proper ventilation system performance.\u003cbr\u003e\nType: Metal Venting \/ Duct Adapter\u003cbr\u003e\nSize: 4 inch to 5 inch\u003cbr\u003e\nDimensions: Standard transition length × 5 inch (large end) × 4 inch (small end)\u003cbr\u003e\nApplication: Used to connect 4-inch exhaust outlets to 5-inch ducting in dryer vents, kitchen range hoods, bathroom fans, and general HVAC systems.\u003cbr\u003e\nSpecifications: High-heat resistant metal construction; tapered design for minimal airflow resistance; compatible with rigid and flexible metal ducting.","brand":"BCFurnace","offers":[{"title":"4\" TO 5\" INCREASER \/ 638-108","offer_id":47252095238429,"sku":null,"price":19.57,"currency_code":"CAD","in_stock":true},{"title":"4\" TO 5\" INCREASER \/ 136233","offer_id":47252095271197,"sku":null,"price":19.57,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/a9f8ddcba1b24f379a6368013b989fed.webp?v=1773960219","url":"https:\/\/bcfurnace.myshopify.com\/products\/638-108","provider":"BCFurnace","version":"1.0","type":"link"}