A new factory-installed window opening control device (WOCD) that meets ASTM F2090-13 requirements is available for Ultra Series Crank-Out Casement windows.* It limits the opening to less than 4 inches, but is designed with a limit release mechanism to allow for emergency escape. When requested, it will be factory-installed, however it is available in a kit for installation on the job site as well. The maximum box size for this option is 36" x 90". The minimum box size width is 22".
*This device is not available for Ultra Series crank-out EP or XL casements, or for push-out casements.