Plumbing / laundry hose with no plastic liner?

[theskyking1234]

Hi, my son has an allergy to plastic and rubber and I am trying to find a water inlet hose for my washing machine that is 100% metal, without a liner or interior coating.

Is it possible to find metal hoses / tubing that doesn’t have a synthetic liner?

Any Amazon or Home Depot links would be appreciated. Thanks!