K&N Filters universal rubber air filter details
K&N Filters Universal Rubber Air Filter – 1-3/4" FLG x 3" B x 2" T x 2-1/2" H – Round Tapered (KNNRU-2690)
The K&N Filters Universal Rubber Air Filter – 1-3/4" FLG x 3" B x 2" T x 2-1/2" H – Round Tapered (KNNRU-2690) is designed for high-performance air intake systems. Built with durable rubber construction, this tapered filter fits a wide range of vehicles and custom setups. With a 1-3/4-inch flange, 3-inch base, 2-inch top, and 2-1/2-inch height, it provides optimal airflow while maintaining compact dimensions for tight engine bays. Ideal for performance enthusiasts and professional mechanics seeking reliable filtration in a compact form.
Features and Specifications:
Flange Inside Diameter: 1-3/4 inches
Base Diameter: 3 inches
Top Diameter: 2 inches
Overall Height: 2-1/2 inches
Shape: Round Tapered
Performance Boost: Enhances horsepower, acceleration, and engine performance with advanced air filter media.
Filtration Layers: Features 4 layers of premium cotton gauze with tack agent for superior contaminant blocking.
Durable Build: Constructed using rugged materials and advanced manufacturing for long-lasting performance.
Maintenance Interval: Requires cleaning only every 75,000 miles under normal highway driving conditions.
Easy Setup: Pre-oiled and ready to install for a quick, hassle-free upgrade.
Universal Fit: Compatible with a wide range of vehicle applications.
Eco-Friendly: Reusable design reduces landfill waste from disposable air filters.
Product identification
- Brand: K&N Filters
- Model / MPN: KNNRU-2690




