FitMatch
Jacuzzi J-200 / J-100 50 sq ft filter 338 x 125 mm (373045J)

Spa cartridge

Jacuzzi J-200 / J-100 50 sq ft filter 338 x 125 mm (373045J)

373045J

Fits 13 models · replace every 2 years

Wrong part, or your model missing? Tell us. A person checks every report.

Genuine

$68.92

Spa World · 30 Oct

Compatible

$44.00

Heater and Spa Parts · 30 Oct

Check seller

Genuine: made by Jacuzzi. Compatible: another brand.

Lowest compatible · $44.00

Heater and Spa Parts. Compare with genuine below. Some links earn us a commission.

Open Heater and Spa Parts

Compare 3 listings from 2 sellers

AUD, before delivery. Each price shows when it was checked.

Heater and Spa PartsCompatible · checked 30 Oct$44.00Open
Spa WorldCompatible · checked 30 Oct$51.43Open
Spa WorldGenuine · checked 30 Oct$68.92Open
Open cheapest seller · $44.00

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 pool filter cartridge is due — it's every 2 years. One email two weeks before, no newsletter. Manage or stop it anytime.

Also saves the model to a FitMatch account under this address; the email signs you in, no password.

How to change the 373045J pool filter cartridge

Watch the guide or follow the steps.

How to Clean and Replace Your Hot Tub Filters · Jacuzzi® Official (official)
  1. 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).
  2. 2Lift the filter skimmer grill up off its retaining clips.
  3. 3Unscrew the cartridge and lift it out.
  4. 4Rinse the pleats from the top down with a hose, or fit a new cartridge.
  5. 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.

Will it fit your appliance?

Type your model number and we'll check it against the makers' lists.

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
What does the 373045J fit?
The Jacuzzi J-200 / J-100 50 sq ft filter 338 x 125 mm (373045J) fits 13 Jacuzzi models, including the J-115, J-125 and J-13. Every one is listed on this page.
How often should I replace the 373045J?
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?
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.

Something looks wrong with the 373045J match? . Reports go to a person, not a bot.