Volant Primo Diesel air filters are made with 8 layers of the highest quality textiles; pleated between a top and bottom aluminum screen, designed specifically for severe duty trucks. Each filter comes pre-oiled and ready for use. This design will allow the highest air flow rate possible and a very long filter life and service intervals of up to 40,000 miles depending on driving conditions. We recommend cleaning Primo Diesel air filters only when necessary. Inspect the filter every 12,00-15,000 miles to ensure peak operation.

• Featuring 8 Layers Of Progressive Media, Primo Diesel Filters Are 98% Efficient And Offer Extended Maintenance Intervals (Up to 40K Miles) Clean And Re-Oil to Maintain Peak Performance.
• Free Flowing, Primo Diesel Re-Usable Oiled Cotton Gauze Air Filters Are Designed to Maximize Air Flow and Are Ideal for Severe Duty Diesel Trucks.
• Up To 40K Miles No Maintenance (Depending on Driving Conditions)
• Low Maintenance Filtration Oiled Filter
• Up To 40K Miles No Maintenance
• Low Maintenance Filtration
• Outflows Stock Air Filter
• 5 Layer Filtration
• 8 Layer Filtration
• Lifetime Filter
• Free Flowing