Geometric air returns with filter
Our regular geometric grilles can be made any size and function very well as return air grilles. However, some people need to have an integrated filter assembly. This is often because the existing furnace does not have a filter, or maybe it is located in a dank crawl space or inconvenient attic location. In that case these can be very handy. If you have an oddball dimensioned duct opening for which there is not a standard filter size available this is not a problem. Filtration material on a roll that is cut with a scissors is common and can be trimmed to fit your unusual opening. That should be available locally.
Any of the 26 geometric designs can be chosen for this style of return air vent cover. Choose from oak, cherry, maple, or paint grade veneer.