Air Filter Round 14x2.31

The Air Filter Round 14x2.31 is a reusable cotton engine air filter designed for automotive enthusiasts and mechanics who demand sustained airflow without the maintenance burden of disposable paper elements. Built by GREEN FILTER, a manufacturer known for performance-oriented filtration, this round filter serves as a drop-in upgrade for stock intake systems across a wide range of vehicles.

This filter features a cotton-blend media construction that balances filtration efficiency with unrestricted airflow—a critical advantage in modified or high-RPM applications where restrictive elements can hinder power delivery. The filter has a vertical height of 4.5 inches and overall dimensions of 14.25 inches, allowing for fitment in most factory airbox assemblies without requiring extensive intake modification.

Ideal for street-driven vehicles, weekend project cars, and any engine modification where intake velocity and sustained power matter, this filter allows periodic cleaning and re-oiling, extending service life and reducing long-term ownership costs while maintaining consistent engine breathing throughout its lifecycle.