With Expertise Built In™, the OTR Cabin Air Filter is manufactured at an ISO9001-certified facility with over 30 years of experience producing heavy duty filters. Made from the highest quality media and engineered to OEM fit, form and function, the OTR cabin air filter replacement is purposed to keep dust, mold spores, pollen and pollution at bay. Improve the quality of the cabin's air with the OTR cabin air filter. OTR heavy duty parts offer the same form, fit, and function as OE. With comprehensive research, independent testing, and continuous product development, OTR heavy duty parts are sure to keep you and your truck safely on the road. In addition to providing the highest quality of heavy duty truck and trailer parts, you can rely on OTR warranties to be comparable or better than OE and top brands. FleetPride is your First Click in Heavy Duty®.