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12.5 x 21 x 4" Air Filter
| Replaces Brand | Various |
|---|---|
| Exact Width | 12 |
| Exact Width Fraction | 1/2" |
| Exact Length | 21 |
| Exact Length Fraction | 0" |
| Exact Thickness | 3 |
| Exact Thickness Fraction | 3/4" |
| Nominal Width | 12 |
| Nominal Width Fraction | 1/2" |
| Nominal Length | 21 |
| Nominal Length Fraction | 0" |
| Nominal Thickness | 4 |
| Nominal Thickness Fraction | 0" |
