They're a proven filter. Brackett Aero Filters, formerly AC, have been in service on aircraft and helicopters since 1968. At present, Brackett foam filters are installed as factory original equipment on 16 current production aircraft and four helicopters.
FAA-PMA Approved for 88 different aircraft & helicopter models.
Treated foam is highly efficient at filtering.
You only replace the low cost throwaway element, not the entire filter.
Easy Servicing
Dual stage foam element increases dust holding capacity.
Brackett's foam filter is approved for sea planes as it is unaffected by water.
It has no pleats to store dirt and is abrasive resistant.
Dual stage foam element increases dust holding capacity.