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Old Jan 1, 2011 | 07:23 AM
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Brown Falcon
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Joined: Jul 2008
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From: Thomasville, GA
Originally Posted by J-W
I'm under the impression the Donaldson filter is larger than the 6637 filter.....no?
They are the same, there are several different "brands" of filter that are the same 6637, some claim to be better, but when it comes down to it they are all made at the same place... just different stickers. lol
 
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