Photo 1 of (2-Pack) 213 Replacement Filter Compatible with April-Aire Air Purifiers Actual Size: 21" x 24.75" x 4", Nominal Size: 20''x25''x4'' 1210,1620,2210,2216,3210 MERV-13 Furnace Filter Replacement

Double tap image to zoom

Photo 1 of (2-Pack) 213 Replacement Filter Compatible with April-Aire Air Purifiers Actual Size: 21" x 24.75" x 4", Nominal Size: 20''x25''x4'' 1210,1620,2210,2216,3210 MERV-13 Furnace Filter ReplacementPhoto 2 of (2-Pack) 213 Replacement Filter Compatible with April-Aire Air Purifiers Actual Size: 21" x 24.75" x 4", Nominal Size: 20''x25''x4'' 1210,1620,2210,2216,3210 MERV-13 Furnace Filter ReplacementPhoto 3 of (2-Pack) 213 Replacement Filter Compatible with April-Aire Air Purifiers Actual Size: 21" x 24.75" x 4", Nominal Size: 20''x25''x4'' 1210,1620,2210,2216,3210 MERV-13 Furnace Filter Replacement