The InSinkErator HC1100 takes the InSinkErator F-701R replacement filter (5 micron) as its water filter; replace it every 6 months; Australian sellers list it from A$53.95 as of 26 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your filtered water tap
InSinkErator HC1100
Tap or under-sink system
Confirmed against InSinkErator's listConfirmed against InSinkErator's own compatibility list
Not yours? ChangeSave it · remind me every 6 months
Takes the F-701R water filter
F-701R replacement filter (5 micron) · replace every 6 months · check the code printed on your old filter before ordering.
Your filtered water tap
Tap or under-sink system
Confirmed against InSinkErator's listConfirmed against InSinkErator's own compatibility list
Takes the F-701R
Water filter · every 6 months · check the code on your old filter.
Other InSinkErator filtered water taps that take the F-701R
GenuineGenuine InSinkErator
$105.28
Amazon AU · 26 OctLowest genuine · Amazon AU · checked 26 Oct
CompatibleCompatible option
$53.95
eBay AU · 26 OcteBay AU · checked 26 Oct
Check sellerCheck seller details
Genuine: made by InSinkErator. Compatible: another brand. Check certification on the seller's page.Genuine is made by InSinkErator. Compatible is made by another brand. Check the seller's certification details before choosing.
Lowest compatibleLowest compatible price · $53.95
eBay 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 5 listings from 3 sellers
AUD, before delivery. Each price shows when it was checked.
Compatible options
3 listings from 2 sellers
Opens eBay 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 6 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the water filter in your InSinkErator HC1100
Watch the guide or follow the steps.
- 1Put a dish or towel under the filter to catch water.
- 2Slowly turn the cartridge anticlockwise until it stops (a quarter turn); about 60 ml of water comes out of the vent line. Pull the cartridge straight down.
- 3Push the new F-701R up into the head until its top is flush with the bottom of the head.
- 4Turn it clockwise until it stops (a quarter turn) and the in/out arrows on the head and cartridge line up.
- 5Open the tap to push out trapped air and run the water for 3 minutes before use.
Every number this part goes by
- Retail name:
- F-701R
Sellers list any of these; they are the same part.
About your InSinkErator HC1100
InSinkErator filtered water tap, tap or under-sink system — InSinkErator Hottap 1100 series. Its water filter is the F-701R replacement filter (5 micron), part F-701R, changed every 6 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 these 6 InSinkErator models
InSinkErator6 models
Multitap 3N1, Multitap 4N1. InSinkErator AU does not name the Multitap filter; F-701R is sold for HotTap and Multitap by its NZ distributor. Check the code on your current filter.
Common questions
- Which water filter fits the InSinkErator HC1100?
- The InSinkErator HC1100 takes the InSinkErator F-701R replacement filter (5 micron). Compatible filters made to the same specification also fit.
- How often should I replace the water filter in my InSinkErator HC1100?
- Every 6 months. Flow slows and performance drops off as the filter fills up, so it's worth doing on time.
- Where can I buy the F-701R in Australia?
- We track 3 Australian sellers for the F-701R; the lowest listed price when we last checked was A$53.95 at eBay AU. Prices are re-checked daily and dated on this page.
- How do I fit the F-701R in an InSinkErator HC1100?
- 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 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.
- Is there anything to reset afterwards?
- No reset light on the 1100 and 3300 taps. Write the date on the filter.
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