ADD W1 Crankcase Vent Breather Filters are available in four primary sizes: 9mm, 15mm, 20mm, and 25mm, designed to cover the most common applications. Each breather filter features a highly flexible rubber base that allows for a universal fit across a wide range of hose sizes. With its adaptable design, a single filter can securely fit sizes ranging from 9mm up to 25mm, including: 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, and 25mm. This flexible fitment design simplifies installation and reduces the need for multiple size-specific filters, making it ideal for custom setups, catch can systems, and engine bay upgrades. Key Features:• Improves airflow compared to OEM filters• Captures airborne particles and contaminants• Supports better crankcase ventilation• Durable, high-quality construction These breather filters are washable and reusable, offering a long-lasting and cost-effective solution for both performance enthusiasts and daily drivers. Perfect for custom setups, catch can systems, and engine bay upgrades.
