Northwest Helicopters is now an approved dealer for the Donaldson/AFS Engine Inlet Barrier Filter system. We offer this filter as an option on all our refurbished helicopters. We have installed several of these kits on customer helicopters over the past several years and the results are impressive! This filter is part of the modernization of the Bell UH-1H Helicopter and it looks great on the entire upgraded package. Contact firstname.lastname@example.org for more information on getting an AFS on your helicopter at the best price.