Air-Controlled Shock Absorbing Pneumatic Door Closer Black

Cd1700 Series pneumatic shock absorbing steel spring door closer. Retards door opening speed. Absorbs shock to help minimize closer or door damage caused by heavy wind or abusive force. Used on wood or metal doors up to 1-3/8 inch thick. Used in new installations, replacement for worn or broken closers. Door closing speed is fully adjustable. Door can be held in open position with handy hold open washer. Weather resistant black coated finish provides protection in all seasons.