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Question by VivekRathee (103)
Answer by sparky35 (196)
1/2 condiut refers to a nominal trade size. Depending on what type of conduit you use the i.d. changes. For example 1/2 EMT has a larger i.d. than PVC 80 and so on. The actual o.d. of 1/2 conduit is 7/8". If you go to 3/4" the o.d. is 1 1/8".
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