Tell Manufacturing DC100320 15542 Duro Closer, Grade 3, Size 2 The Tell DC100320 15542 Size 2 Grade 3 Duro Closer has a size 2 spring that fits the interior 2-foot 6-inch door. The same hole pattern is present as in the Norton 9300 and Yale 2300 series. It is made of non-handed, cast aluminum. The door range is up to 180 degrees. Features Size 2 spring Fits interior 2-foot 6-inch door Same hole pattern as Norton 9300 and Yale 2300 series Up to 180 degree door range USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.