What you are seeking is a 1 wide hinged or removable cover.
Attic carrier furnace filter location.
If your hvac unit is installed in your attic for example then your filter may be installed in an air vent instead of a return duct.
Once it is located look for a slot where an air filter should fit.
The exact location of the filter can vary depending on the indoor hvac unit and type of system.
If you have a thicker filter that is 4 or more the slot should match accordingly.
Typically the unit would be found in a basement an attic or sometimes in the back of a closet.
On hvac systems with a return in each room there may be an air filter behind each of the return grills.
Most single home residential systems include either a vertical or horizontal indoor air handler unit furnace or fan coil typically in a basement furnace utility closet garage or sometimes an attic.
The exact location of the filter can vary by carrier furnace model.
See the chart below the filter you need corresponds to the width of your unit.
This can change however depending on where your unit is installed.
Locate the furnace filter inside the blower cabinet.
Some products like furnaces may also be affected by installation orientation horizontal upflow or downflow or even by the nozzle used in installation as is the case with boilers and oil furnaces.
Furnace filters for the carrier 58mcb.
In a traditional hvac system your air filter is usually installed between your hvac unit and your return duct.
Look for the filter along the sides top or bottom of the blower cabinet.
The filter may be positioned horizontally or vertically depending on the model.
On vertical air handlers with the return air duct entering below the air handler the filter often fits in a slot located below the hvac unit.
The furnace filters for the carrier 58mcb is found on the bottom of the unit usually on the side.