The PetSafe Drinkwell 7.5 Litre Pet Fountain takes the PetSafe Drinkwell Replacement Carbon Filters (4-pack) (part PAC00-13906) as its filter; replace it every month; Australian sellers list it from A$2.24 as of 5 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your pet fountain
PetSafe Drinkwell 7.5 Litre Pet Fountain
Pet fountain
Confirmed against PetSafe's listConfirmed against PetSafe Australia's compatibility list
Not yours? ChangeSave it · remind me every month
Takes the PAC00-13906 filter
Drinkwell Replacement Carbon Filters (4-pack) · replace every month · check the code printed on your old filter before ordering.
Your pet fountain
Pet fountain
Confirmed against PetSafe's listConfirmed against PetSafe Australia's compatibility list
Takes the PAC00-13906
Filter · every month · check the code on your old filter.
Other PetSafe pet fountains that take the PAC00-13906
GenuineGenuine PetSafe
$5.05 each
4-pack $20.20
Amazon AU · 5 OctLowest genuine · Amazon AU · checked 5 Oct
CompatibleCompatible option
$2.24 each
8-pack $17.92
Amazon AU · 5 OctAmazon AU · checked 5 Oct
Check sellerCheck seller details
Genuine: made by PetSafe. Compatible: another brand. Check certification on the seller's page.Genuine is made by PetSafe. Compatible is made by another brand. Check the seller's certification details before choosing.
Lowest compatibleLowest compatible price · $2.24 each · 8-pack $17.92
Amazon AU. Compare with genuine below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
This pet fountain also takes a pre-filter
- PetSafe Drinkwell Replacement Foam Filters (2-pack)Open Amazon AU$1.06 each · 12-pack $12.72
Separate from the filter. Reduces hair and larger debris. Replace every 2 months.
Compare 5 sellers
Compare 4 sellers
AUD, before delivery. Each price shows when it was checked.
Compatible options
1 seller
Genuine PetSafe
3 sellers
Opens Amazon AU in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Usually every month.
Flow slows and taste drops off as the filter fills up. Changing on time is the whole point.
Not due yet?
Get a nudge when your filter is due — it's every month. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the filter in your PetSafe Drinkwell 7.5 Litre Pet Fountain
Watch the guide or follow the steps.
- 1Unplug the fountain, lift the top housing off the base and tip out the water.
- 2Slide the old carbon cartridge out of the slot behind the spout.
- 3Rinse the new cartridge under the tap for a few seconds, then slide it in the same way round.
- 4Refit the housing, fill to the line and plug in. Change every 2 to 4 weeks.
Every number this part goes by
- Retail name:
- Drinkwell Carbon Filter
- Retail name:
- PAC00-13906
Sellers list any of these; they are the same part.
About your PetSafe Drinkwell 7.5 Litre Pet Fountain
PetSafe pet fountain, pet fountain — Drinkwell. Its filter is the Drinkwell Replacement Carbon Filters (4-pack), part PAC00-13906, changed every month.
Also in this pet fountain: PetSafe Drinkwell Replacement Foam Filters (2-pack) (every 2 months).
Where the model number is: The fountain's name (PIXI, Flower Fountain, EverSweet 3 Pro) is printed on the base or the underside label; the filter type is printed on the old filter's packaging.
Fits these 8 PetSafe models
Common questions
- Which filter fits the PetSafe Drinkwell 7.5 Litre Pet Fountain?
- The PetSafe Drinkwell 7.5 Litre Pet Fountain takes the PetSafe Drinkwell Replacement Carbon Filters (4-pack) (part PAC00-13906). Compatible filters made to the same specification also fit.
- How often should I replace the filter in my PetSafe Drinkwell 7.5 Litre Pet Fountain?
- Every month. Flow slows and performance drops off as the filter fills up, so it's worth doing on time.
- Where can I buy the PAC00-13906 in Australia?
- We track 4 Australian sellers for the PAC00-13906; the lowest listed price when we last checked was A$2.24 at Amazon AU. Prices are re-checked daily and dated on this page.
- How do I fit the PAC00-13906 in a PetSafe Drinkwell 7.5 Litre Pet Fountain?
- No tools, a few minutes: 4 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- The pad clogs, the pump works harder, and the water the fountain was bought to keep fresh is not.
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