Photo 1 of 2 Pack 413 Replacement Filter Compatible with AprilAire Whole House Air Purifier 1410, 1610, 2410, 2416, 3410, 4400, MERV 13 Filters, Actual Size: 28"x16"x4", Nominal Size: 25x16x4

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Photo 1 of 2 Pack 413 Replacement Filter Compatible with AprilAire Whole House Air Purifier 1410, 1610, 2410, 2416, 3410, 4400, MERV 13 Filters, Actual Size: 28"x16"x4", Nominal Size: 25x16x4Photo 2 of 2 Pack 413 Replacement Filter Compatible with AprilAire Whole House Air Purifier 1410, 1610, 2410, 2416, 3410, 4400, MERV 13 Filters, Actual Size: 28"x16"x4", Nominal Size: 25x16x4Photo 3 of 2 Pack 413 Replacement Filter Compatible with AprilAire Whole House Air Purifier 1410, 1610, 2410, 2416, 3410, 4400, MERV 13 Filters, Actual Size: 28"x16"x4", Nominal Size: 25x16x4Photo 4 of 2 Pack 413 Replacement Filter Compatible with AprilAire Whole House Air Purifier 1410, 1610, 2410, 2416, 3410, 4400, MERV 13 Filters, Actual Size: 28"x16"x4", Nominal Size: 25x16x4