4.5-inch Thick

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12x20x4.5 Carrier FAIC0014A02 Air Filter
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12x20x4.5 Carrier FAIC0014A02 Air Filter

Original price was: $62.90.Current price is: $44.03.
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12x20x4.5 Carrier FILCCFNC0014 Air Filter
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12x20x4.5 Carrier FILCCFNC0014 Air Filter

Original price was: $62.90.Current price is: $44.03.
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16x20x4.5 Carrier FILXXFNC0117 Air Filter
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16x20x4.5 Carrier FILXXFNC0117 Air Filter

Original price was: $62.90.Current price is: $44.03.
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17.5x21x4.5 Rheem PD540016 Air Filter
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17.5x21x4.5 Rheem PD540016 Air Filter

Original price was: $53.90.Current price is: $37.73.
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17.5x21x4.5 Ruud Protech 540010 Air Filter
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17.5x21x4.5 Ruud Protech 540010 Air Filter

Original price was: $53.90.Current price is: $37.73.
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19x20x4.5 Carrier FILXXFNC0021 Air Filter
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19x20x4.5 Carrier FILXXFNC0021 Air Filter

Original price was: $62.90.Current price is: $44.03.
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19x20x4.5 Carrier FNCCAB0021 Air Filter
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19x20x4.5 Carrier FNCCAB0021 Air Filter

Original price was: $62.90.Current price is: $44.03.
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20x23x4.5 Carrier FILXXFNC0024 Air Filter
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20x23x4.5 Carrier FILXXFNC0024 Air Filter

Original price was: $71.90.Current price is: $50.33.
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20x23x4.5 Carrier FNCCAB0024 Air Filter
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20x23x4.5 Carrier FNCCAB0024 Air Filter

Original price was: $71.90.Current price is: $50.33.
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21x21x4.5 Ruud Protech 540012 Air Filter
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21x21x4.5 Ruud Protech 540012 Air Filter

Original price was: $56.90.Current price is: $39.83.
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21x21x4.5 Ruud Protech 540018 Air Filter
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21x21x4.5 Ruud Protech 540018 Air Filter

Original price was: $56.90.Current price is: $39.83.
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21x21x4.5 Ruud RXHF-E21AM13 Air Filter
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21x21x4.5 Ruud RXHF-E21AM13 Air Filter

Original price was: $56.90.Current price is: $39.83.