The LG GF-B620SL takes the LG FSS-002 External Inline Water Filter (part ADQ73693903) as its water filter; replace it every 6 months; Australian sellers list it from A$31.00 as of 20 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your fridge
LG GF-B620SL
French door
Confirmed against LG's listConfirmed against LG Australia's compatibility list
Not yours? ChangeSave it · remind me every 6 months
Takes the ADQ73693903 water filter
FSS-002 External Inline Water Filter · replace every 6 months · check the code printed on your old filter before ordering.
Your fridge
French door
Confirmed against LG's listConfirmed against LG Australia's compatibility list
Takes the ADQ73693903
Water filter · every 6 months · check the code on your old filter.
Other LG fridges that take the ADQ73693903
GenuineGenuine LG
$31.00
Water Filter Distributors · 20 OctLowest genuine · Water Filter Distributors · checked 20 Oct
CompatibleCompatible option
$33.00
Water Filter for Fridge · 5 OctWater Filter for Fridge · checked 5 Oct
Check sellerCheck seller details
Genuine: made by LG. Compatible: another brand. Check certification on the seller's page.Genuine is made by LG. Compatible is made by another brand. Check the seller's certification details before choosing.
Lowest compatibleLowest compatible price · $33.00
Water Filter for Fridge. 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 sellers
AUD, before delivery. Each price shows when it was checked.
Compatible options
1 seller
Opens Water Filter Distributors in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Usually every 6 months.
After replacing: Press and hold the Water Filter button for three seconds to reset the Replacement Filter icon.
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 6 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to replace the water filter in your LG GF-B620SL
Watch the guide or follow the steps.
- 1Turn off the tap that feeds the fridge and pull the fridge out enough to reach the filter on the hose at the back.
- 2Note which way the arrow on the old filter points, then press the collar on each fitting and pull the hose out of both ends.
- 3Push the hoses firmly into the new filter, arrow pointing towards the fridge, until they stop; give each a gentle tug to check.
- 4Turn the water back on, check both fittings for drips, then run 4 litres through the dispenser before drinking. Note the date on the filter.
Every number this part goes by
- Retail name:
- FSS-002
- Retail name:
- FSS002
- Part number:
- ADQ73693901
- Part number:
- ADQ73693903
- Compatible part no.:
- ARWF6755
Sellers list any of these; they are the same part.
About your LG GF-B620SL
LG fridge, french door — 620L French Door Refrigerator with Auto Ice Maker. Its water filter is the FSS-002 External Inline Water Filter, part ADQ73693903, changed every 6 months.
Where the model number is: Open the fridge door: the label is on the inside left wall, roughly at eye level, headed MODEL (GF-…/GS-…).
Fits these 29 LG models
Common questions
- Which water filter fits the LG GF-B620SL?
- The LG GF-B620SL takes the LG FSS-002 External Inline Water Filter (part ADQ73693903). Compatible filters made to the same specification also fit.
- How often should I replace the water filter in my LG GF-B620SL?
- 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 ADQ73693903 in Australia?
- We track 7 Australian sellers for the ADQ73693903; the lowest listed price when we last checked was A$31.00 at Water Filter Distributors. Prices are re-checked daily and dated on this page.
- How do I fit the ADQ73693903 in a LG GF-B620SL?
- 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?
- Flow from the dispenser slows and chlorine taste and odour come back as the carbon saturates; the fridge itself keeps working.
- How do I reset the reminder?
- Press and hold the Water Filter button for three seconds to reset the Replacement Filter icon.
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