Pneumatic Door Closer - Black

withstand repeated opening and closing of the door The screws at the end of the pneumatic door closer make it easier to increase or decrease the closing speed and strength of the door making it easier for people to enter and exit while extending the service life of the door and frame Full 90 degree opening It is recommended to use individual door closers for light to medium weight doors and pairs of door closers one above the door and one below the door for heavier windproof and screen doors Includes all mounting hardware no need to order or add additional parts easy to install please refer to the manual on packaging for detailed installation procedures