1. High flow filter designed to fit 3 inch, 3 1/2 inch and 4 inch tubes, package included: 1 x air filter
2. Round Reverse Tapered; 3 in/3.5 in/4 in (102 mm/89 mm/76 mm) Flange ID; 2.625 in (67 mm) Height; 6 in (152 mm) Base; 4.75 in (121 mm) Top
3.Quality materials used throughout including washable, oiled synthetic media, urethane, and steel mesh
4. Increases Air Flow w/o Sacrificing Air Filtration
5.HIFROM focus on provide high quality air filter at fair price: Professional factory, Professional technical support; 3 Months warranty; if you unsatisfy with our product, you can return to our warehouse, no risk.