Uni Filter NU-8508ST Multi-Stage Competition Air Filter for Polaris ATV

The Uni Filter NU-8508ST is a high-performance multi-stage competition air filter designed specifically for Polaris ATV applications. This premium foam filter delivers superior filtration and airflow for demanding off-road conditions.

How Uni Foam Filters Work:

Uni filters utilize open-cell polyurethane foam technology that's wetted with specially formulated filter oil. The sticky oil is suspended throughout the foam's web-like cell structure, creating multiple layers of filtration. As air passes through, dirt particles are trapped on the oiled strands, with the outer layers capturing larger particles first while inner layers catch finer contaminants. This progressive filtration design utilizes the entire thickness of the foam, preventing surface loading and maintaining consistent airflow throughout 80% of the filter's service life.

Key Features:

• Multi-stage foam construction for maximum dirt-trapping capacity
• Open-cell polyurethane foam provides excellent airflow
• Prevents surface loading for consistent performance
• Washable and reusable design for long-term value
• Easy maintenance - simply wash, re-oil, and reinstall
• Competition-grade filtration for extreme riding conditions
• Direct replacement for Polaris ATV stock filter

Built for riders who demand maximum protection and performance, this Uni filter combines superior filtration efficiency with the convenience of a reusable design, making it ideal for competitive racing and aggressive trail riding.