Description
The K&N Filters Univ Rubber Air Filter – 2-3/4″FLG, 6″B, 5″T, 6-1/2″H (KNNRU-4870) delivers reliable performance in a universal fit design. Built with a durable rubber flange and filter media, it fits a wide range of custom intake setups. This filter supports high airflow for enhanced engine performance while maintaining strong filtration efficiency. With exact measurements of a 2-3/4-inch flange, 6-inch base, 5-inch top, and 6-1/2-inch height, it’s a solid choice for performance upgrades or replacements.
Features and Specifications:
- Air Filter Material: Cotton Gauze
- Air Filter Shape: Round Tapered
- Flange Inside Diameter: 2-3/4 inches
- Base Outside Diameter: 6 inches
- Top Outside Diameter: 5 inches
- Overall Height: 6-1/2 inches
- Engineered Power: Advanced air filter media enhances horsepower, acceleration, and overall engine performance.
- Superior Protection: Four layers of premium cotton gauze with a specialized tacking agent trap harmful contaminants effectively.
- Durable Construction: Built with high-quality materials and precision manufacturing for long-lasting performance.
- Long Service Life: Under normal highway conditions, it requires cleaning only every 75,000 miles, equivalent to about five years.
- Easy Installation: Pre-oiled and ready to use, making it a simple and cost-effective upgrade for better performance.
- Versatile Fitment: Designed for compatibility with a wide range of applications.
- Eco-Friendly: Reusable design helps reduce landfill waste from disposable filters.
- Reliable Warranty: Backed by a 1-year limited warranty for peace of mind.





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