![Metal Air Filters - 12x24x1 Reusable MERV 4 Foam Air Filter - metal_air_filters_two_stage_foam_aluminum_hfa_series_filter-e1661811146445.jpg](https://cdn.metalairfilters.com/wp-content/uploads/2020/12/metal_air_filters_two_stage_foam_aluminum_hfa_series_filter-e1661811146445.jpg)
12x24x1 Reusable MERV 4 Foam Air Filter
$37.64
L: 11.5in, W: 23.5in, H: 0.875in
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![Metal Air Filters - 16x20x1 Reusable MERV 4 Foam Air Filter - metal_air_filters_two_stage_foam_aluminum_hfa_series_filter-e1661811146445.jpg](https://cdn.metalairfilters.com/wp-content/uploads/2020/12/metal_air_filters_two_stage_foam_aluminum_hfa_series_filter-e1661811146445.jpg)
16x20x1 Reusable MERV 4 Foam Air Filter
$41.62
L: 15.5in, W: 19.5in, H: 0.875in
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![Metal Air Filters - 16x25x1 Reusable MERV 4 Foam Air Filter - metal_air_filters_two_stage_foam_aluminum_hfa_series_filter-e1661811146445.jpg](https://cdn.metalairfilters.com/wp-content/uploads/2020/12/metal_air_filters_two_stage_foam_aluminum_hfa_series_filter-e1661811146445.jpg)
16x25x1 Reusable MERV 4 Foam Air Filter
$47.01
L: 15.5in, W: 24.5in, H: 0.875in
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![Metal Air Filters - 20x20x1 Reusable MERV 4 Foam Air Filter - metal_air_filters_two_stage_foam_aluminum_hfa_series_filter-e1661811146445.jpg](https://cdn.metalairfilters.com/wp-content/uploads/2020/12/metal_air_filters_two_stage_foam_aluminum_hfa_series_filter-e1661811146445.jpg)
20x20x1 Reusable MERV 4 Foam Air Filter
$46.94
L: 19.5in, W: 19.5in, H: 0.875in
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![Metal Air Filters - 20x25x1 Reusable MERV 4 Foam Air Filter - metal_air_filters_two_stage_foam_aluminum_hfa_series_filter-e1661811146445.jpg](https://cdn.metalairfilters.com/wp-content/uploads/2020/12/metal_air_filters_two_stage_foam_aluminum_hfa_series_filter-e1661811146445.jpg)
20x25x1 Reusable MERV 4 Foam Air Filter
$53.51
L: 19.5in, W: 24.5in, H: 0.875in
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![Metal Air Filters - 24x24x1 Reusable MERV 4 Foam Air Filter - metal_air_filters_two_stage_foam_aluminum_hfa_series_filter-e1661811146445.jpg](https://cdn.metalairfilters.com/wp-content/uploads/2020/12/metal_air_filters_two_stage_foam_aluminum_hfa_series_filter-e1661811146445.jpg)
24x24x1 Reusable MERV 4 Foam Air Filter
$58.39
L: 23.5in, W: 23.5in, H: 0.875in
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