Article number: 8717853700101 View all from Merkloos > View more: Door closers > Savings topper Door closer with spring You simply place the door closer over the door hinge. As soon as you open the door, the spring is tensioned. When you let go of the door, the force of the tensioned spring ensures that the door closes automatically. The door closer is placed over the door hinge. Product specifications Door closer - Spring Article description Door closer - Spring Article number 8717853700101 Installation required No Type Door Inner door Country of origin Netherlands Standard, suitable for rebated doors Internal size: approx. 11 mm Save approximately 15 m³ of gas per year per door On some heavier doors, 2 door springs are necessary For a door in a corner, special door closers are available. See the matching products. Environmental information about Door closer - Spring Save approximately 15 m³ of gas per year per door.