The Chef RRE635S takes the Unilux activated carbon rangehood filter ULX250 (1-pack; ULX251 2-pack) as its carbon filter; replace it every 3 months; Australian sellers list it from A$32.50 each as of 26 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your rangehood
Chef RRE635S
Rangehood
Confirmed against Chef's listConfirmed against Chef's own compatibility list
Not yours? ChangeSave it · remind me every 3 months
Takes the ULX250 carbon filter
Unilux activated carbon rangehood filter ULX250 (1-pack; ULX251 2-pack) · replace every 3 months · check the code printed on your old filter before ordering.
Your rangehood
Rangehood
Confirmed against Chef's listConfirmed against Chef's own compatibility list
Takes the ULX250
Carbon filter · every 3 months · check the code on your old filter.
Other Chef rangehoods that take the ULX250
GenuineGenuine Westinghouse
$32.50 each
2-pack $65.00
Westinghouse Australia · 26 OctLowest genuine · Westinghouse Australia · checked 26 Oct
CompatibleCompatible option
See seller
No compatible seller tracked yetNo compatible seller tracked yet
Genuine: made by Westinghouse. Compatible: another brand.Genuine is made by Westinghouse. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest price · $32.50 each · 2-pack $65.00
Westinghouse Australia. 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.
Compare 4 listings from 2 sellers
AUD, before delivery. Each price shows when it was checked.
Genuine Westinghouse
4 listings from 2 sellers
Opens Westinghouse Australia in a new tab. Their page is the source of truth for price, delivery and returns.
Not due yet?
Get a nudge when your carbon filter is due — it's every 3 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the carbon filter in your Chef RRE635S
Watch the guide or follow the steps.
- 1Switch the rangehood off at the wall.
- 2Take out the grease filter(s) to uncover the fan housing.
- 3Turn the old round carbon filter to release it from the fan inlet. Twin-fan models have one on each side.
- 4Fit the new filter over the fan inlet and turn it to lock it in place.
- 5Refit the grease filters. Carbon filters can't be washed; replace them.
Every number this part goes by
- Retail name:
- 900404088
- Retail name:
- 900404089
- Retail name:
- ULX250
- Retail name:
- ULX251
- Retail name:
- Unilux ULX250
- Retail name:
- Unilux ULX251
- Replaces:
- 4055540159
- Replaces:
- 900404114
- Replaces:
- ARCFD
Sellers list any of these; they are the same part.
About your Chef RRE635S
Chef rangehood — Slide-out. Its carbon filter is the Unilux activated carbon rangehood filter ULX250 (1-pack; ULX251 2-pack), part ULX250, changed every 3 months.
Where the model number is: Take out a grease filter: the rating plate with the model number is on the inside wall of the hood or on the fan housing. It is also in the manual and on the receipt.
Fits these 50 models
Chef16 models
Common questions
- Which carbon filter fits the Chef RRE635S?
- The Chef RRE635S takes the Unilux activated carbon rangehood filter ULX250 (1-pack; ULX251 2-pack).
- How often should I replace the carbon filter in my Chef RRE635S?
- Every 3 months. It works less well as the filter fills up, so it's worth doing on time.
- Where can I buy the ULX250 in Australia?
- We track 2 Australian sellers for the ULX250; the lowest listed price when we last checked was A$32.50 at Westinghouse Australia. Prices are re-checked daily and dated on this page.
- How do I fit the ULX250 in a Chef RRE635S?
- 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?
- Grease builds up in the mesh and the fan pulls less air, so smoke and smells linger; a recirculating hood with a spent carbon filter blows the smell back into the kitchen.
- How do I reset the filter light?
- Most hoods this part fits have no filter reminder. If yours has a filter light, the manual for your model explains the reset.
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