Outer Diameter: 5.31 Inches (135 MM) Thread Size: 1 1/2-16 Length: 12.13 Inches (308 MM) Gasket OD: 4.29 Inches (109 MM) Gasket ID: 3.94 Inches (100 MM) Efficiency 99%: 40 Micron Efficiency Test Std: ISO 16889 Media Type: Cellulose Type: Full-Flow Style: Spin-On