Which is better...

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In general, filtration and flow rate come from a combination of how many pleats there are and what kind of material the filter is made of. Restrictive material + Lots of pleats = Good flow, good filtration Restrictive material + Few pleats = Poor flow, good filtration Un-restrictive material + Lots of pleats = Excellent flow, poor filtration Un-restrictive material + Few pleats = Good flow, poor filtration
 
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