Select an air filter, oil filter, fuel filter or cabin air filter manufacturer link below to find a similar K&N part to the Napa part. 1 Napa 100024 Oil Filter
They make NAPA air filters, which are not particularly assailable. They are among the best built filters on the market, and I would assume (maybe wrongly!) that the media they employ does a better job per square inch than a lot of competitor's. Now, in my case, the air filter need only have the square inches to go a meager 10K or slightly over.