Description
The K&N Filters Universal Rubber Air Filter – 2-3/4″ FLG x 6-1/4″x4″ OD x 5″ H – Oval (KNNRU-1500) is engineered for performance and designed to fit a wide range of intake systems. This rubber-ended oval air filter provides excellent filtration while maintaining airflow efficiency, which is ideal for universal or custom applications. With its durable rubber construction and high-flow filter media, this unit is reliable, washable, and reusable, making it a practical choice for automotive enthusiasts. Perfect for setups that require a compact yet effective air intake solution, it delivers both longevity and compatibility.
Features and Specifications:
- Flange Inside Diameter: 2.75 in (70 mm)
- Outside Diameter: 6.25 in (159 mm) x 4 in (102 mm)
- Height: 5 in (127 mm)
- 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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