Cross-Reference：LF3443 P559126 B157 LF3443 51754
| Outer Diameter | 4.21 inch (107 mm) |
| Thread Size | 1-12 UN |
| Length | 5.79 inch (147 mm) |
| Gasket OD | 2.83 inch (72 mm) |
| Gasket ID | 2.44 inch (62 mm) |
| Efficiency 99% | 40 micron |
| Efficiency Test Std | ISO 16889 |
| Bypass Valve | Yes |
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