Ideal Security SK1730W Pneumatic Door Closer, 10-1/2 in L, Aluminum, 90 deg Opening, 60 lb

This heavy-duty pneumatic (air pressure) door closer is appropriate for use on 1-1/4 to 2 in Thick heavier aluminum, steel or wood storm and screen doors. This Series is for out-swinging storm doors. The door closing speed is adjustable with the air adjustment screw at the end of the closer tube. The closer tube is made of aluminum which will not rust. The closer can be installed at the top, middle or bottom of your door, depending on the construction of your door.