pleated insect screens effectively protect rooms from insects. They can be mounted both in the window recesses, as well as on the window frames. As a result, they are compatible with all window systems, including both aluminum and PVC. The low-threshold design ideal for balcony and terrace doors is a major advantage of the system. The INSECT SYSTEM insect screen is available in three variants: single-sided, double-sided and centrally-oriented.