This high-quality chimney pipe from DuraVent is a great addition to any stove or chimney system. With a 4" inner diameter and a length of 48", this unit is designed for optimal performance and durability. The twin wall construction and aluminum/galvanized steel material make it a reliable choice for any home or business. The DuraVent 46DVA-48B chimney pipe is compatible with a range of models and is designed for vertical orientation. It has a unit quantity of 1 and weighs 10 lb. This multicolor unit is perfect for use in stoves and chimneys, and it is made in the United States. With its durable construction and reliable design, this chimney pipe is sure to provide long-lasting comfort and warmth.