Replacement 3-layer dry air filter compatible with HKS Super Power Flow.Size: For φ7.9 inches (200 mm); Estimated replacement: 6,000 km to 10,000 km or 6 to 12 months; Product liability insurance (PL insurance) has been added.● This is an ADVANTAGE product.Please do not wash this product as it will reduce the dust collecting effect.Please be aware of this in simple packaging.