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TaoTao DB17 questions
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01-21-2018, 12:39 PM
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dirtbkr188
Join Date: Aug 2009
Posts: 503
The inner filter is a denser foam that gets oiled with foam filter oil. the outer foam is less dense, I don't usually oil that one, but you can if desired. That's why it is called a two-stage filter, due to the different densities.
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