Key Release Friction Arm Restrictor

Features Include:

• For use in a 16mm cavity.

• Available in a 6'' or 8'' version.

• Non handed product.

• Easy to fit no routing required.

• Can be used on windows without reinforcement.

The locking friction arm mechanism is engineered for strength, reliability, and long-term performance. It is released using a dedicated key, allowing the window vent to open to its maximum extent — ideal for cleaning, inspection, or general maintenance. Once the task is complete, the mechanism can be quickly re-engaged, restoring the window to its restricted opening position and ensuring consistent safety control.

Constructed from durable, corrosion-resistant materials, this restrictor is designed to withstand repeated use in demanding environments without compromise. Its robust design makes it well-suited for a wide range of applications, including residential properties, hotels, care homes, hospitals, schools, and commercial buildings — anywhere that combines a need for controlled ventilation with secure restricted access.

Whether you're managing a multi-unit building, ensuring tenant or patient safety, or simply seeking a high-quality, tamper-resistant window restrictor, this friction arm mechanism delivers peace of mind with professional-grade performance.