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Old 10-25-2005, 12:44 PM   #43
Toysrme
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Join Date: Dec 2004
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Center Tubes

Purolator: Uses a metal center tube with 169 holes, each about 3/32” dia. The center tube does not extend all the way to the top of the filter element. ½” of filter element at the top of the filter is exposed without additional support beyond the center tube.
AAP: Identical to Purolator


NAPA: Spiral construction metal center tube, much more rigid than Purolator/AAP or Toyota. 52 holes, each about 5/32” diameter.


Toyota: Metal center tube with 153 holes, each approx 3/32” diameter.
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