ROCKFIL is one of China car filters manufacturers for years.

Key Features & Benefits
Superior Filtration Performance
99.99% filtration efficiency for 3-5μm particles (ISO 5011 certified)
Advanced nanofiber composite media traps dust, sand, and airborne contaminants
Prevents cylinder wear and extends engine service life by 40%.
Extended Service Life
Higher dust holding capacity than conventional filters
60,000-100,000km service interval for on-highway applications
Reduces maintenance frequency and vehicle downtime
Optimized Airflow Design
Low initial resistance (≤0.35kPa) ensures maximum engine power
Improves fuel efficiency by 2-3%, reducing operating costs
Maintains consistent airflow throughout service life
Robust Construction
Reinforced metal support prevents media deformation under vibration
Heavy-duty end caps with corrosion-resistant coating
High-quality PU sealing ensures 100% airtight fitment
Wide Compatibility
OEM-grade dimensional precision
Fits all major engine and vehicle brands
Direct replacement for original equipment

Applications
✅ Heavy-duty trucks & buses
✅ Construction & mining equipment
✅ Agricultural machinery
✅ Industrial generators
✅ Passenger vehicles

Quality Assurance
Every filter undergoes 100% quality inspection including air leakage test, flow resistance test, and filtration efficiency verification before shipment.

Reliable Filtration. Trusted Performance.
Engineered to protect your engines, engineered to grow your business.