Roto Angel Ventlock
Window opening control device (WOCD)
The Roto Angel Ventlock® – a window opening control device that has moved on dramatically from old-fashioned window guards and screens.
Angel Ventlocks® can be both low-cost and incredibly effective without detracting from the appearance and overall function of the window; they can be integrated easily by the window manufacturer and aftermarket retrofitting takes just a few minutes.
