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The WCFab Outerwear air filter cover is a hydrophobic pre-filter designed for use with WCFab air filters to help repel moisture and block debris. Treated at the mill for long‑lasting water repellency, it runs dry—no oils required—and can filter larger particles while protecting primary filter media. Care is simple: inspect regularly, rinse in mild soapy water when needed, and replace periodically to maintain water repellency and airflow.
Wehrli Universal Outerwear Air Filter Cover (Use w/WCF Air Filters)
