Trane takes indoor air quality seriously, which is why we offer the SlimFit Filter Rack to help you fight dust, dirt, and other unwanted particles from entering your home. This air filter is versatile, fitting into both Trane TEM air handlers and Trane S-Series furnaces. For homeowners who own one or more of the mentioned HVAC systems, adding in a SlimFit Filter Rack to your existing system is a quick and easy way to help improve indoor air quality in your home.