The DuraVent (5GVL90) Type B Gas Vent 90 Degree Adjustable Elbow is a high-quality heating and ventilation product designed for use with gas appliances. Made by DuraVent in China, this adjustable elbow allows for easy installation and ensures a secure connection for efficient gas ventilation. With a 5-inch diameter, this vent is compatible with various fireplaces and stoves, making it a versatile and reliable choice for home improvement projects related to heating and cooling systems.