The Flanders Natural Aire filter, Fits up to 20 X 30, cut-to-fit

Product Description The Flanders PrecisionAire SM1006 can be cut with heavy shears or a razor knife to create almost any size one- inch air filter for furnace and central air, up to 20X30 inches. It is springy, almost rigid and needs no frame for support. Just cut and install. Moreover, it can be washed and reused several times. It is the ideal replacement for hard to find or special filter sizes. From the Manufacturer The Flanders PrecisionAire SM1006 can be cut with heavy shears or a razor knife to create almost any size one- inch air filter for furnace and central air, up to 20X30 inches. It is springy, almost rigid and needs no frame for support. Just cut and install. Moreover, it can be washed and reused several times. It is the ideal replacement for hard to find or special filter sizes.