FitMatch
Melitta PRO AQUA filter cartridge

Coffee machine water filter

Melitta PRO AQUA filter cartridge

6784658

Fits 10 models · replace every 2 months

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Genuine

$23.00

Amazon AU · 26 Oct

Compatible

See seller

No compatible seller tracked yet

Genuine: made by Melitta. Compatible: another brand. Check certification on the seller's page.

Lowest price · $23.00

Amazon AU. Every seller we track is listed below. Some links earn us a commission.

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Compare 3 listings from 2 sellers

AUD, before delivery. Each price shows when it was checked.

Open cheapest seller · $23.00

Opens Amazon AU in a new tab. Their page is the source of truth for price, delivery and returns.

Not due yet?

Get a nudge when your water filter is due — it's every 2 months. One email two weeks before, no newsletter. Manage or stop it anytime.

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How to change the 6784658 water filter

Watch the guide or follow the steps.

No clear video for this part yet. The steps cover it.

  1. 1Stand the new cartridge in a jug of fresh tap water for a few minutes.
  2. 2Display models (Barista, Passione, Varianza, CI Touch): open the menu, go to Care > Filter > Insert filter (or Change filter) and press Start.
  3. 3Button models (Purista, Latticia, Avanza): hold the Service or Water/Service button for 2 seconds and step to the Filter function.
  4. 4Follow the machine: empty the tank, screw the cartridge into the bottom of the tank, fill with fresh water and let the filter programme run.
  5. 5Change it every 2 months, or sooner when the machine asks.
Every number this part goes by
Retail name:
192830
Retail name:
4006508192830
Retail name:
6784658
Retail name:
Melitta Pro Aqua
Retail name:
Pro Aqua
Retail name:
PRO AQUA

Sellers list any of these; they are the same part.

Will it fit your appliance?

Type your model number and we'll check it against the makers' lists.

Fits these 10 Melitta models
Common questions
What does the 6784658 fit?
The Melitta PRO AQUA filter cartridge (part 6784658) fits 10 Melitta models, including the Avanza, Caffeo Barista T Smart and Caffeo Barista TS Smart. Every one is listed on this page.
How often should I replace the 6784658?
Every 2 months. Flow slows and performance drops off as the filter fills up, so it's worth doing on time.
Where can I buy the 6784658 in Australia?
We track 2 Australian sellers for the 6784658; the lowest listed price when we last checked was A$23.00 at Amazon AU. Prices are re-checked daily and dated on this page.
How do I fit the 6784658?
No tools, a few minutes: 5 steps, listed on this page with the replacement video where the maker has one.
What happens if I don't change it?
The filter stops softening the water, scale builds in the boiler, and the machine asks to be descaled more often; taste in the cup drops off too.
How do I reset the filter light?
Register the new filter in the menu (Care > Filter > Insert filter or Change filter on display models; Service mode on button models). The Filter light then resets.

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