Original replacement foam air filter 7233070

TwinAir foam filter
 
More than 40 years ago, the sandy and gravelly soils of the Netherlands - and the resulting engine failures - demonstrated that foam and paper filters provided airflow for pilots but did not protect them.
 
Twin Air's innovative dual-layer design combined performance and protection.
 
The molten layers of open-cell foam and fine inner foam trap even the smallest particles.
 
The new, more rounded design increases airflow. This also applies to the minimized seams, made possible by a revolutionary micro-gluing process: shorter seams = more foam = more airflow.
 
- With fluid foam and no bounce laminated inside the filter.
- washable and reusable (40 to 50 times is usual)
- Two-layer foam (according to specifications with cells of equal size and distribution)
- High quality (hand-assembled and tested for a perfect fit)