K&N Filters universal rubber air filter details
K&N Filters Universal Rubber Air Filter – 6" FLG x 1" L x 7-1/2" OD x 4-1/2" H (KNNRU-1850)
The K&N Filters Universal Rubber Air Filter – 6" FLG x 1" L x 7-1/2" OD x 4-1/2" H (KNNRU-1850) is built to meet the needs of high-flow intake systems in various applications. With a 6-inch inner diameter flange, 7.5-inch outer diameter, and 4.5-inch height, this universal rubber filter offers a durable and flexible fit for vehicles requiring custom air filter setups. Ideal for performance and replacement applications, this filter is designed to enhance airflow while providing dependable filtration. Compatible with a broad range of engines, the K&N Filters Universal Rubber Air Filter KNNRU-1850 is a reliable choice for mechanics, enthusiasts, and professionals seeking a long-lasting air filter solution.
Features and Specifications:
Flange Inside Diameter: 6-inch
Flange Length: 1-inch
Outside Diameter: 7-1/2-inch
Height: 4-1/2-inch
Engineered Performance: Advanced filter media enhances horsepower, acceleration, and efficiency.
Multi-Layer Protection: Four layers of premium cotton gauze with tack agent trap harmful contaminants.
Durable Build: Constructed with high-quality materials and cutting-edge methods for long-lasting use.
Low Maintenance: Requires cleaning only every 75,000 miles under normal highway conditions.
Simple Installation: Pre-oiled and ready to install for quick performance improvements.
Versatile Fit: Universal design suits a wide range of vehicles and applications.
Eco-Friendly: Reusable design helps reduce landfill waste from disposable filters.
Product identification
- Brand: K&N Filters
- Model / MPN: KNNRU-1850




