Photo 1 of 2 Pack 213 Replacement Filter Compatible with AprilAire Whole House Air Purifiers Model 1210, 1620, 2210, 2216, 3210, 4200, Size:20x25x4(20.2" x 25.4" x 3.77") MERV 13 Pleated HVAC AC Furnace Filter

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Photo 1 of 2 Pack 213 Replacement Filter Compatible with AprilAire Whole House Air Purifiers Model 1210, 1620, 2210, 2216, 3210, 4200, Size:20x25x4(20.2" x 25.4" x 3.77") MERV 13 Pleated HVAC AC Furnace FilterPhoto 2 of 2 Pack 213 Replacement Filter Compatible with AprilAire Whole House Air Purifiers Model 1210, 1620, 2210, 2216, 3210, 4200, Size:20x25x4(20.2" x 25.4" x 3.77") MERV 13 Pleated HVAC AC Furnace FilterPhoto 3 of 2 Pack 213 Replacement Filter Compatible with AprilAire Whole House Air Purifiers Model 1210, 1620, 2210, 2216, 3210, 4200, Size:20x25x4(20.2" x 25.4" x 3.77") MERV 13 Pleated HVAC AC Furnace Filter