MACO multi-vent ventilation restrictor is designed to limit the tilt opening on a tilt and turn window. 

Features:

• Surface face mounted ventilation restriction device
• Allen key will allow the adjustment of the side friction element or to fully lock the device from the front face
• Drill hole sizes using a 3mm drill bit
• Designed to suit flat 0 degree system sash edges - Optional packers (sold seperatly) allow for the angle adjustment when fitting the product