National Hardware Black Heavy-Duty Pneumatic Screen Door Closer is a heavy-duty air-controlled door closer designed for use on outswinging wood or metal doors up to 1-3/8 inches thick. The door closing speed is fully adjustable to meet your specific needs, and the two-hole end plug allows you to regulate the closing force precisely. This door closer includes a convenient hold-open washer for added functionality. Built to last, it features an extended operating life thanks to its permanently lubricated mechanism, ensuring smooth and reliable performance over time. Model Number: N100-038