With Expertise Built In™, OTR Cabin Air Filters are manufactured at an ISO9001-certified facility with over 30 years of experience producing heavy duty filters. This OTR cabin air filter replacement is equipped and purposed to improve the quality of the cabin’s air, keeping dust, mold spores, pollen, and pollution at bay. Made from the highest quality media, OTR cabin air filters are engineered to OEM fit, form, and function. FleetPride is your First Click in Heavy Duty®.