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Old 01-26-2016, 08:23 PM   #1
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question: Racor filter fittings

I've noticed that all my Racor fuel filters have 2 ports near the bottom of the sediment bowl. I understand the lowest fitting; to drain off the worst of the sediment. Why is there a second fitting a few inches above the lower fitting, and why does this second fitting have an o-ring, while the fitting at the very bottom has no o-ring?

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Old 01-26-2016, 08:25 PM   #2
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the higher fitting is for an optional water sensor.


Why yes and no O rings...not sure.
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Old 01-26-2016, 10:02 PM   #3
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Is the bottom one pipe thread? if so will not use an Oring
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