1. We are a Chinese factory with more than 30 years of experience in the manufacture, commercialization and distribution of air filters, oil filters, and fuel filters. Our products are designed for the automotive, trucks,general, agricultural.2. To prevent your engine from suffering irreparable damage from the application of poor filter elements, Rainbow offers all its experience and top quality filters that guarantee to improve the life of the engine.3. RAINBOW has the most important quality certifications like ISO 9001:2000 in all its production lines (air filters, oil and fuel), this ensures high product quality and reliability.4. We have strong relationships with our clients in most of around the world,North America, Europe, South America, South Asia, Middle East and Africa