Universal air filter details
K&N Filters Universal Clamp-On Air Filter – Dual Flange (KNNRU-1012)
The K&N Filters Universal Clamp-On Air Filter – Dual Flange (KNNRU-1012) is engineered to deliver increased airflow and excellent filtration for high-performance applications. Its tapered oval design and dual flange construction make it compatible with a wide range of intake systems. Designed for do-it-yourself custom intake setups, this air filter fits 3.125-inch intake pipes and supports long-lasting engine performance. With washable and reusable cotton gauze media, it reduces waste while maximizing engine airflow. Ideal for off-road, racing, and street vehicles looking for improved throttle response and filtration.
Features and Specifications:
Air Filter Material: Cotton Gauze
Flange Center to Center: 4 in (102 mm)
Flange Inside Diameter: 3.125 in (79 mm)
Flange Length: 0.625 in (16 mm)
Flange Type: Centered
Height: 9 in (229 mm)
Top Material: Rubber
Air Filter Shape: Oval Tapered
Engineered Power: State-of-the-art air filter media boosts horsepower and acceleration while enhancing overall engine performance.
Rugged Construction: Made from durable, premium materials and advanced construction methods for long-lasting performance.
4 Layers of Protection: Premium cotton gauze treated with a specialized tacking agent blocks and traps harmful contaminants.
Low Maintenance: Clean every 75,000 miles (5 years) under normal highway driving conditions.
Reusable Design: Replacing disposable filters with washable, reusable air filters saves up to $125 over 200,000 miles.
Easy Installation: Pre-oiled and ready for quick, hassle-free installation into the factory air box.
Reduces Waste: This helps reduce landfill waste by eliminating the need for disposable air filters and packaging.
Product identification
- Brand: K&N Filters
- Model / MPN: KNNRU-1012




