The DuraVent PelletVent Fixed Horizontal Chimney Cap provides long-lasting performance, durability and reliability with its double-wall air-insulated design, factory-sealed seams and corrosion-resistant stainless steel construction. Designed to terminate a 4 in. Dia and horizontally-vented wood pellet-burning stove, this chimney cap has a built-in swivel case for easy alignment, is easy to install and easy to use.