Aha Trivia Stuff Everyone Should Know
Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-plumbing-6f2aeff118e1

Which copper tubing type is thickest and often used underground?

Type K.

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  1. Type M
  2. Type DWV
  3. Type K ✔

Why: Type K is the thickest copper tubing, typically used underground between the main and meter.

Huh, didn't know that: Type K is the thickest copper tubing, typically used underground between the main and meter.

The dad joke
Type K is a cut above the rest.
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References

Answer: Type K. Type K is the thickest copper tubing, typically used underground between the main and meter.

  1. Plumbing en.wikipedia.org/wiki/Plumbing
    type 'K' (thickest, typically used underground between the main and the meter)
    Checked 2026-11-07.

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