![Choice of plumbing fitting size and dimensions of black and galvanised steel pipes from 1/2 inch to 1 inch - Blog déco - MC Fact](/files/2021/09/dimension_tube_example.png)
Black and galvanized steel plumbing fitting match 1/2 inch to 1 inch
Correspondence table between plumbing fitting size and inch steel pipe dimensions in mm. Metric designation (∅ inside x ∅ outside), DN designation
(nominal diameter), Outside diameter (mm)