Unit of Measure Imperial Metric Both

Pipe Sizes

Nominal Diameter (in)	3 4 6 8
Nominal Diameter (mm)	100 150 200 80
Outside Diameter (in)	3-5/16 4 6 8-1/16
Outside Diameter (mm)	84.8 101.8 153 205
Inside Diameter (in)	3-1/8 3-13/16 5-13/16 7-13/16
Inside Diameter (mm)	80 96.8 147.5 198.6
Wall Thickness (in)	1/16 1/8
Wall Thickness (mm)	2.4 2.5 2.75 3.2

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