Photo 1 of 2 Pack 213 Replacement Filter,MERV 13 20x25x4,Compatible with AprilAire Whole House Air Purifiers 1210, 1620, 2120, 2200, 2210, 2216, 3210, 4200, or Space-Gard 2200 with Upgrade Kit 1213

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Photo 1 of 2 Pack 213 Replacement Filter,MERV 13 20x25x4,Compatible with AprilAire Whole House Air Purifiers 1210, 1620, 2120, 2200, 2210, 2216, 3210, 4200, or Space-Gard 2200 with Upgrade Kit 1213Photo 2 of 2 Pack 213 Replacement Filter,MERV 13 20x25x4,Compatible with AprilAire Whole House Air Purifiers 1210, 1620, 2120, 2200, 2210, 2216, 3210, 4200, or Space-Gard 2200 with Upgrade Kit 1213