These Outsource cold air returns are made with Platinum MDF. They come with frames or without frames, primed or raw material so you can paint it whatever colour you like and comes in three different lengths. In addition to these options, they come with either a standard 90 degree grate or for more of a low profile, they come in a 30 degree grate. These cold air returns stand out from the baseboards, eliminating the need of beveling baseboard ends. This quality primed coat is easy to paint, giving you the option to match it with the wall color. The minimal design blends right in, fitting any home without standing out any more than a soft gentle breeze.