The AIRAID Premium Filter 721-476 is a high-flow replacement air filter engineered to optimize engine airflow while maintaining superior filtration efficiency. Designed for custom applications or as an upgrade for existing intake systems, this filter utilizes AIRAID’s unique filtration technology to capture dirt particles that standard cotton-gauze filters often miss.Constructed with multiple layers of specialized filter media, this universal premium filter provides a significant improvement in air volume without compromising engine protection. Whether you are building a custom intake or refreshing an existing kit, this filter provides the durability and performance required for demanding environments. Every AIRAID Premium Filter is designed and manufactured in the USA using high-quality materials to ensure precise fitment and long-lasting service. Manufacturer Part Number: 721-476 Filter Media: Multiple layers of advanced filtration technology Design: Universal application for custom or upgraded intake systems Origin: Proudly designed and manufactured in the USA Performance: High-flow design engineered to improve airflow over ordinary filters