Spacegard
Space-Gard is now known as AprilAire. You will find on-line owners manuals as well as exploded views of your model on its associated air cleaner parts page. Product support is available from us by clicking on the following Contact Us link.
If you have a Spacegard air cleaner you must replace the air cleaner media 2 times per year if you have heating and cooling and once per year if you only have heating.