FILTERWEARS Pre-Filter K399 For K&N Air Filter E-0644

Direct from manufacturer. Made in the USA.

Filter material: 100% monofilament polyester with water repellent finish standard on all pre-filters. Open top, oval straight pre-filter.

Measurements: 6.5"x9.25" (width-length) x 8.938"(height)

Fits K&N Air Filter: E-0644

Vehicle Applications:

• 2017-2019 Ford F-550 Super Duty 6.7L V8 Diesel
• 2017-2019 Ford F-450 Super Duty 6.7L V8 Diesel
• 2017 Ford F-450 Super Duty 6.2L V8 Gas
• 2017-2019 Ford F-350 Super Duty 6.7L V8 Diesel / 6.2L V8 Gas
• 2017-2019 Ford F-250 Super Duty 6.7L V8 Diesel / 6.2L V8 Gas