The Outerwears Water-Repellent Pre-Filter is designed to provide an additional layer of protection for compatible 4-inch diameter air filters. With a 2.25-inch-tall profile, this pre-filter helps shield the primary filter from sand, dirt, clay, and water while supporting consistent airflow for powersports, racing, and performance applications. It is identified by Outerwears part number 20-1055-01 and is manufactured by Outerwears.
Constructed from silicone-impregnated micro-mesh, the pre-filter offers water-resistant protection without creating a noticeable restriction in air intake. Dyno and flow bench testing has shown no significant horsepower or airflow loss when using this product. The material features uniform micron-sized openings that allow air to pass through while filtering unwanted contaminants, including particles as small as 0.005 inch in diameter.
Dielectrically welded seams support durability and help prevent separation during regular use in demanding environments. The flexible design is intended to fit compatible round air filters measuring 4 inches in diameter and 2.25 inches tall. Verify the dimensions and shape of the existing air filter before installation to ensure proper fitment. The Outerwears 20-1055-01 is a practical choice for extending primary filter service life and adding protection in dusty, sandy, or wet riding conditions.
Features:
- Water-resistant silicone-impregnated micro-mesh helps protect compatible air filters from moisture and debris
- Uniform micron-sized openings allow airflow while filtering sand, dirt, clay, water, and other unwanted elements
- Filters particles as small as 0.005 inch in diameter without noticeable airflow restriction
- Dyno and flow bench testing showed no significant horsepower or air intake loss
- Dielectrically welded seams provide durable construction
- Fits compatible round air filters measuring 4 inches in diameter and 2.25 inches tall
- Brand: Outerwears
- Manufacturer Part Number: 20-1055-01
- Vendor Part Number: 20-1055-01