Concord Smart Restrictor

This New Concord Stainless Steel Smart Restrictor has a unique design featuring Concord like nose to avoid catching the sash when closing. This biggest problem with spring restrictors is when the sash drops slightly then it can damage and bend standard restrictors. This unique design eliminates such problem. Base Plate : 46mm * 15mm Screw Centres : 33mm Projection : 83mm