New Inner Air Filter Boomer Fits Ford New Holland 30 33 35 37 40 50One New Aftermarket Replacement Inner Air Filter Fits Ford New Holland Compact Tractors This inner (secondary) air filter provides a critical second stage of engine air filtration, protecting the combustion chamber from fine dust and airborne contaminants that pass through the outer primary element. It fits a wide range of Fits Ford and Fits New Holland (Fits Ford New Holland) compact tractors across the TC, T, and Boomer series, as well as many other