The Jacuzzi J-245 takes the Jacuzzi J-200 / J-100 50 sq ft filter 338 x 125 mm (373045J) as its cartridge; replace it every 2 years; Australian sellers list it from A$44.00 as of 30 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your spa
Jacuzzi J-245
Spa
Confirmed against Jacuzzi's listConfirmed against Jacuzzi's own compatibility list
Not yours? ChangeSave it · remind me every 2 years
Takes the 373045J cartridge
J-200 / J-100 50 sq ft filter 338 x 125 mm (373045J) · replace every 2 years · check the code on your old part before ordering.
Takes 1 cartridge. 2023 and later models take the oval 6541-853J instead.
Your spa
Spa
Confirmed against Jacuzzi's listConfirmed against Jacuzzi's own compatibility list
Takes the 373045J
Cartridge · every 2 years · check the code on your old part.
Takes 1 cartridge. 2023 and later models take the oval 6541-853J instead.
Other Jacuzzi spas that take the 373045J
GenuineGenuine Jacuzzi
$68.92
Spa World · 30 OctLowest genuine · Spa World · checked 30 Oct
CompatibleCompatible option
$44.00
Heater and Spa Parts · 30 OctHeater and Spa Parts · checked 30 Oct
Check sellerCheck seller details
Genuine: made by Jacuzzi. Compatible: another brand.Genuine is made by Jacuzzi. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest compatibleLowest compatible price · $44.00
Heater and Spa Parts. Compare with genuine below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
Compare 3 listings from 2 sellers
AUD, before delivery. Each price shows when it was checked.
Compatible options
2 sellers
Opens Heater and Spa Parts 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 2 years. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the cartridge in your Jacuzzi J-245
Watch the guide or follow the steps.
- 1Switch the spa off at the isolating switch or switchboard (the J-200 manual says turn the power off at the breaker or select HOLD mode).
- 2Lift the filter skimmer grill up off its retaining clips.
- 3Unscrew the cartridge and lift it out.
- 4Rinse the pleats from the top down with a hose, or fit a new cartridge.
- 5Refit the cartridge, slide the cover back down over its clips and turn the power back on.
Every number this part goes by
- Retail name:
- 373045
- Retail name:
- 373045J
- Retail name:
- J-200 filter 50 sq ft
Sellers list any of these; they are the same part.
About your Jacuzzi J-245
Jacuzzi spa — J-200 Collection. Its cartridge is the J-200 / J-100 50 sq ft filter 338 x 125 mm (373045J), part 373045J, changed every 2 years.
Other cartridges the maker lists for this spa: Jacuzzi ProClassic 50 sq ft oval filter 248 x 203 mm (6541-853J) (every 18 months). 2023 and later models take the oval ProClassic 6541-853J.
Where the model number is: The model (J-345, J-435) is on the ID plate on the base pan or inside the cabinet under the touchpad, and many spas have a SmartTub QR sticker beside the touchpad. On swim spas the plate is on the cabinet panel at the swim-jet end. The year matters for some models, so note it too.
Fits these 13 Jacuzzi models
J-13. Later J-13 models take 373045J; some early J-13s had a different filter, so measure yours (373045J is 338 x 125 mm).
J-230. 2005-2007 models take 373045J.
J-210, J-220. Takes 1 cartridge. 2005-2008 models.
J-115, J-125, J-135, J-145. Takes 1 cartridge. J-115/J-125: 2016-2022; J-135/J-145: 2012-2022.
The other 5 models. Takes 1 cartridge. 2023 and later models take the oval 6541-853J instead.
Common questions
- Which cartridge fits the Jacuzzi J-245?
- The Jacuzzi J-245 takes the Jacuzzi J-200 / J-100 50 sq ft filter 338 x 125 mm (373045J). Takes 1 cartridge. 2023 and later models take the oval 6541-853J instead.
- How often should I replace the cartridge in my Jacuzzi J-245?
- Every 2 years, or sooner if the cartridge light comes on.
- Where can I buy the 373045J in Australia?
- We track 2 Australian sellers for the 373045J; the lowest listed price when we last checked was A$44.00 at Heater and Spa Parts. Prices are re-checked daily and dated on this page.
- How do I fit the 373045J in a Jacuzzi J-245?
- 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.
- How do I reset the reminder?
- J-200 panels alternate "CHNG FLTR" with the normal display; reset the timer as the J-200 manual shows.
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