Thread: how bad is this going to hurt my flow?
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Unread 06-25-2004, 10:21 PM   #3
AngryAlpaca
Cooling Savant
 
Join Date: Jan 2004
Location: Alberta
Posts: 631
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12mm=1/2" with the tolerances that we have. With plastic tees, a half inch one has 10mm ID and 15mm OD. :S
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