The Zip HydroTap G3 takes the Zip sub-micron (0.5 micron) filter 91240 as its water filter; replace it every 12 months; Australian sellers list it from A$69.00 as of 26 October 2026. This fit is not yet confirmed against the manufacturer's list.

Your filtered water tap
Zip HydroTap G3
Tap or under-sink system
Not confirmed by Zip — check your old filterNot yet confirmed by Zip's own list — check the code on your old filter
Not yours? ChangeSave it · remind me every 12 months
Takes the 91240 water filter
sub-micron (0.5 micron) filter 91240 · replace every 12 months · check the code printed on your old filter before ordering.
Zip UK sells 91240 as the sub-micron filter for non-G4 HydroTaps; check the label on your old cartridge before ordering.

Your filtered water tap
Tap or under-sink system
Not confirmed by Zip — check your old filterNot yet confirmed by Zip's own list — check the code on your old filter

Takes the 91240
Water filter · every 12 months · check the code on your old filter.
Zip UK sells 91240 as the sub-micron filter for non-G4 HydroTaps; check the label on your old cartridge before ordering.
Other Zip filtered water taps and their filters
The 91240 fits the HydroTap G3 only. These Zip models take a different water filter:
GenuineGenuine Zip
$189.95
eBay AU · 26 OctLowest genuine · eBay AU · checked 26 Oct
CompatibleCompatible option
$69.00
Amazon AU · 26 OctAmazon AU · checked 26 Oct
Check sellerCheck seller details
Genuine: made by Zip. Compatible: another brand. Check certification on the seller's page.Genuine is made by Zip. Compatible is made by another brand. Check the seller's certification details before choosing.
Lowest compatibleLowest compatible price · $69.00
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.
Compare 7 listings from 5 sellers
AUD, before delivery. Each price shows when it was checked.
Compatible options
2 sellers
Genuine Zip
5 sellers
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 12 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the water filter in your Zip HydroTap G3
Watch the guide or follow the steps.
No clear video for this part yet. The steps cover it.
- 1Press MENU until you see Filter Flush Off and select it; this shuts off the water supply.
- 2Open the left-hand door (front cover on compact units) of the command centre. Put the end of the flush hose behind the cartridge into a bucket and open the stop valve.
- 3Hold the cartridge, press the red lever at the top right, turn it a quarter turn to the left and pull it down, keeping it level.
- 4Write the date on the new cartridge, wet the O-rings, push it up into the head and turn it a quarter turn to the right as far as it goes.
- 5Press Adjust up to flush at least 12 litres (about 3 minutes), press Adjust down to stop, close the stop valve and put the hose back.
- 6Reset Litres Filtered and Filter Use (Days) in the menu; the white filter light stops flashing.
Every number this part goes by
- Retail name:
- 91240
Sellers list any of these; they are the same part.
About your Zip HydroTap G3

Zip filtered water tap, tap or under-sink system — HydroTap G3 (before 2014). Its water filter is the sub-micron (0.5 micron) filter 91240, part 91240, changed every 12 months.
Where the model number is: On a boiling or chilled water tap the model is on the label on the unit under the bench, not on the tap itself. On an under-sink system it is on the filter head or housing; the cartridge code is printed on the old cartridge.
Fits this Zip model
Zip1 model
Zip UK sells 91240 as the sub-micron filter for non-G4 HydroTaps; check the label on your old cartridge before ordering.
Common questions
- Which water filter fits the Zip HydroTap G3?
- The Zip HydroTap G3 takes the Zip sub-micron (0.5 micron) filter 91240. Zip UK sells 91240 as the sub-micron filter for non-G4 HydroTaps; check the label on your old cartridge before ordering. Compatible filters made to the same specification also fit.
- How often should I replace the water filter in my Zip HydroTap G3?
- Every 12 months. Flow slows and performance drops off as the filter fills up, so it's worth doing on time.
- Where can I buy the 91240 in Australia?
- We track 5 Australian sellers for the 91240; the lowest listed price when we last checked was A$69.00 at Amazon AU. Prices are re-checked daily and dated on this page.
- How do I fit the 91240 in a Zip HydroTap G3?
- No tools, a few minutes: 6 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- The carbon stops reducing chlorine taste and odour and the flow from the tap slows as the cartridge clogs; a boiling-water tap with a scale-reducing filter builds scale in its tank faster.
- How do I reset the filter light?
- On a G3, scroll to Litres Filtered and press Adjust up twice to reset, then do the same for Filter Use (Days); the white filter light stops flashing.
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