Photo 1 of AprilAire 413 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 13, 16x25x4 Air Filter (Pack of 2)

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Photo 1 of AprilAire 413 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 13, 16x25x4 Air Filter (Pack of 2)Photo 2 of AprilAire 413 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 13, 16x25x4 Air Filter (Pack of 2)Photo 3 of AprilAire 413 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 13, 16x25x4 Air Filter (Pack of 2)