The Intex 28404 takes the Intex PureSpa Type S1 spa filter cartridge 29001 (twin pack) as its cartridge; replace it every month; Australian sellers list it from A$5.84 each as of 27 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your spa
Intex 28404
Spa
Confirmed against Intex's listConfirmed against Intex's own compatibility list
Not yours? ChangeSave it · remind me every month
Takes the 29001 cartridge
PureSpa Type S1 spa filter cartridge 29001 (twin pack) · replace every month · check the code on your old part before ordering.
Your spa
Spa
Confirmed against Intex's listConfirmed against Intex's own compatibility list
Takes the 29001
Cartridge · every month · check the code on your old part.
Other Intex spas that take the 29001
GenuineGenuine Intex
$5.84 each
6-pack $35.05
Amazon AU · 27 OctLowest genuine · Amazon AU · checked 27 Oct
CompatibleCompatible option
See seller
No compatible seller tracked yetNo compatible seller tracked yet
Genuine: made by Intex. Compatible: another brand.Genuine is made by Intex. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest price · $5.84 each · 6-pack $35.05
Amazon AU. 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 7 listings from 3 sellers
AUD, before delivery. Each price shows when it was checked.
Genuine Intex
7 listings from 3 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 cartridge is due — it's every month. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the cartridge in your Intex 28404
Watch the guide or follow the steps.
- 1Turn the spa off and unplug the power cord.
- 2Inside the spa, unscrew the cartridge housing from the tub wall and take the cartridge out.
- 3Hose the cartridge clean. If it stays soiled or discoloured, use a new one.
- 4Hold the clean or new cartridge under water and shake it until no air is left inside; trapped air can make the spa show error E90.
- 5Put the cartridge back in the housing and screw the housing back onto the tub wall, then restart the spa.
Every number this part goes by
- Retail name:
- 11692
- Retail name:
- 29001
- Retail name:
- 29001E
- Retail name:
- 29011
- Retail name:
- 29011E
- Retail name:
- Intex PureSpa filter
- Retail name:
- Intex S1
- Retail name:
- Intex spa filter
- Retail name:
- Intex Type S1
- Retail name:
- PureSpa filter
- Retail name:
- S1
Sellers list any of these; they are the same part.
About your Intex 28404
Intex spa — PureSpa bubble spa, round (2019 and earlier); model SSP-H-20-1. Its cartridge is the PureSpa Type S1 spa filter cartridge 29001 (twin pack), part 29001, changed every month.
Where the model number is: The model is on the label on the filter tank or under the lid (Zodiac CS150, Hayward C150S). On an above-ground pump it is on the pump's label or the box (Intex model 604 or item 28604, Bestway 58383); on an inflatable spa, on the box or the pump unit's label (Lay-Z-Spa Miami, Intex SB-H20). If the label has worn off, measure the old cartridge's length and diameter.
Fits these 14 Intex models
28440. Takes 2 cartridges (Intex parts list).
28458, 28462. Intex's manual lists 2 cartridges for this spa and some of its parts lists 3: check how many your spa holds.
28426, 28428, 28442. Takes 2 cartridges. Spas from the 2026 season have a new cartridge housing and take Intex's S2 cartridge (13435) instead: check which cartridge your spa came with.
Common questions
- Which cartridge fits the Intex 28404?
- The Intex 28404 takes the Intex PureSpa Type S1 spa filter cartridge 29001 (twin pack).
- How often should I replace the cartridge in my Intex 28404?
- Every month, or sooner if the cartridge light comes on.
- Where can I buy the 29001 in Australia?
- We track 3 Australian sellers for the 29001; the lowest listed price when we last checked was A$5.84 at Amazon AU. Prices are re-checked daily and dated on this page.
- How do I fit the 29001 in an Intex 28404?
- 5 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- A clogged cartridge slows the flow and the pump works harder, and a torn one lets dirt back into the water, so the pool or spa clouds.
- Is there anything to reset afterwards?
- No reset light. Follow the maker's replacement interval.
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