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  1. H

    Class c and d pipe

    OK, so I have 1/2inch black pipe. It is not MDPE. It is class c or d, HD or LD. There are four possible choices- class c, HD or LD and class d, HD or LD. Most manufacturers do four adaptors for these pipes - light and dark blue and light or dark green. Without seeing these adaptors ie...
  2. H

    Class c and d pipe

    These sites do not give the dimensions of the pipes.
  3. H

    Class c and d pipe

    Yes - lots of references to them, and the BS standards, but no dimensions.
  4. H

    Class c and d pipe

    Can anybody let me have the specs (ID and OD diameter) of these pipes, both HD and LD types, or a website that does. I am having terrible trouble identifying them in my old piping.
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