How do I fit the 19645?

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?

Spent carbon stops removing odours and discolouration, and clogged pads slow the flow, so the filter moves less water through the tank.

Aquarium filter media

Fluval Carbon for AC70/AC110 Power Filter, 145 g

19645

Fits 2 models · replace every month

Wrong part, or your model missing? Tell us. A person checks every report.

GenuineGenuine Fluval

$6.96 each

3-pack $20.88

Aquarium Spare Parts · 30 OctLowest genuine · Aquarium Spare Parts · checked 30 Oct

CompatibleCompatible option

See seller

No compatible seller tracked yetNo compatible seller tracked yet

Genuine: made by Fluval. Compatible: another brand.Genuine is made by Fluval. Compatible is made by another brand. Check the seller's page for the size and models it fits.

Lowest price · $6.96 each · 3-pack $20.88

Aquarium Spare Parts. Every seller we track is listed below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.

Open Aquarium Spare Parts · $6.96 each · 3-pack $20.88

Compare 2 sellers

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

Genuine Fluval

2 sellers

Aquarium Spare PartsGenuine · checked 30 OctGenuine part · Lowest genuinechecked 30 Oct$6.96 each3-pack $20.88OpenGo to seller

Amazon AUGenuine · no price recordedGenuine partno price recordedSee priceOpenGo to seller

Open cheapest seller · $6.96 each · 3-pack $20.88

Opens Aquarium Spare Parts in a new tab. Their page is the source of truth for price, delivery and returns.

How long it lasts

Usually every month (Fluval puts the life of carbon in an aquarium at about a month).

Not due yet?

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

How to change the 19645 aquarium filter media

Watch the guide or follow the steps.

How To EASILY Clean a Fluval AC Series Filter · Fluval Aquatics (official)

1Unplug the filter.
2Lift the media basket out of the filter body.
3Rinse foam in water from the aquarium; rinse BIOMAX in aquarium water only: Fluval says never to rinse it with tap water.
4Fit new carbon insert about every month (Fluval says carbon lasts about a month in an aquarium).
5Put the media basket back in the filter and plug it in.

Every number this part goes by19645 · 19646

Retail name:: 19645
Retail name:: 19646

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.

Your appliance model

Fits these 2 Fluval modelsAquaClear 110, AquaClear 70

Fluval2 models

Common questionsWhat does the 19645 fit? · How often should I replace the 19645? · Where can I buy the 19645 in Australia?

What does the 19645 fit?: The Fluval Carbon for AC70/AC110 Power Filter, 145 g (part 19645) fits the Fluval AquaClear 110 and AquaClear 70.
How often should I replace the 19645?: Every month. It works less well as the filter fills up, so it's worth doing on time.
Where can I buy the 19645 in Australia?: We track 2 Australian sellers for the 19645; the lowest listed price when we last checked was A$6.96 at Aquarium Spare Parts. Prices are re-checked daily and dated on this page.
How do I fit the 19645?: 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?: Spent carbon stops removing odours and discolouration, and clogged pads slow the flow, so the filter moves less water through the tank.

Something looks wrong with the 19645 match? . Reports go to a person, not a bot.