FRAM CF11279 Battery Compartment Filter Filters up to 98% of dust, pollen and other contaminants Engineered for 2005-2012 Ford Escape Hybrid, 2008-2010 Mazda Tribute Hybrid and 2006-2011 Mercury Mariner Hybrid Fram recommends this battery compartment filter be changed every 15,000 miles or at the OE recommended change interval Designed to precisely match OE fit, form and function requirements Easy installation, in as little as 5 minutes