De'Longhi Magnifica Duo

MakerDe'Longhi
BoilerSuper-automatic
Brew boilerNot listed
Steam boilerNot listed
Water tank1.9 L
Plumb-inNot listed
Voltage (US)120V
Maker's water filterWater softener filter (De'Longhi; page: charcoal filter included)

What water does this machine require?

De'Longhi hasn't published a limit our check can use for this machine yet, so the check can't give it a result. Whatever the maker does say is quoted below.

Will my water work with this machine?

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The maker's water guidance

What the maker says this machine needs from its water. This is machine care, not drinking-water advice.

From De'Longhi's guidance for this model.

  • Water filter

    “To ensure the performance of the machine remains constant over time, a message will suggest you install a De'Longhi water softener filter”

    ECAM33080 Coffee Maker instructions for use (US/Canada, EN-FR), De'Longhi asset 369545, PDF dated Feb 2026, PDF p. 10, Installing a filter. Source (opens in a new tab), saved October 28, 2026.

  • Hardness setting

    “After about a minute, 1, 2, 3, or 4 red squares appear, depending on the hardness of the water. Each square corresponds to one level.”

    ECAM33080 Coffee Maker instructions for use (US/Canada, EN-FR), De'Longhi asset 369545, PDF dated Feb 2026, PDF p. 10, Measuring water hardness. Source (opens in a new tab), saved October 28, 2026.

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Specs read from the maker's or seller's page.