K&N performance marine oil filters feature a high-efficiency filter media which is engineered to perform—even under the demands of the prolonged high RPMs often present in marine applications. The synthetic-blend filter media design provides an exceptionally large surface area in order to help increase contaminant capture, helping your engine run reliably and smoothly. For enhanced performance, protection, and longevity in your marine craft, trust a K&N performance oil filter on all of your aquatic adventures!