Opening limiter with side locking featuring fully automatic locking and unlocking via handle operation.
Jeko is a system developed by Esinplast that allows inward opening for single or double-leaf windows; it was specifically designed to support gradual air recirculation, allowing ventilation.
Jeko offers an excellent alternative to tilt-and-turn sashes; compared to these, it is easier to install, more cost-effective, and can be used on windows of any weight.