Our Y elbows are manufactured using corrosion-resistant ABS plastic. The insulating properties of which Y elbows are a convenient and simple connector for branch-offs from flexible ducts. Slide the flexible duct over the elbow end and fasten it with a plastic bend suited to this purpose. The elbow is fitted with a collar to secure the flexible duct. Y elbows have an equal angle of 120° between the branches. Thus the outlet branches are symmetrical to the common inlet branch axis resulting in an equal pressure drop for both outlet branches.