Experience the ease of opening and closing your bi-folding doors with the Blum Aventos HF 20F2200 Light Duty Lift System. This reliable mechanism is designed to support doors up to a certain weight, ensuring a smooth and effortless operation. Crafted from durable steel, this door lift is built to last and is suitable for everyday use. Ideal for both residential and commercial use, this Blum Aventos HF 20F2200 Light Duty Lift System is a must-have for anyone who wants to add a touch of sophistication to their bi-folding doors. With its sturdy construction and easy-to-use design, you can enjoy the benefits of this top-quality door lift system for years to come.