Cross-Reference：P181054 AF409K PA1681-FN
| Outer Diameter | 6.09 inch (154.8 mm) |
| Inner Diameter | 3.48 inch (88.3 mm) |
| Length | 12.00 inch (304.8 mm) |
| Minor OD | 0.66 inch (16.76 mm) |
| Efficiency | 99.9 |
| Efficiency Test Std | ISO 5011 |
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