The Waterco Opal 135 takes the Waterco Opal 135 cartridge element 701039 as its cartridge; Australian sellers list it from A$151.99 as of 6 November 2026. Fitment confirmed against the manufacturer's compatibility list.
Your pool filter
Waterco Opal 135
Pool filter
Confirmed against Waterco's listConfirmed against Waterco's own compatibility list
Not yours? Change
Takes the 701039 cartridge
Opal 135 cartridge element 701039 · check the code on your old part before ordering.
Your pool filter
Pool filter
Confirmed against Waterco's listConfirmed against Waterco's own compatibility list
Takes the 701039
Cartridge · check the code on your old part.
Other Waterco pool filters and their cartridges
The 701039 fits the Opal 135 only. These Waterco models take a different cartridge:
GenuineGenuine Waterco
See seller
No genuine seller tracked yetNo genuine seller tracked yet
CompatibleCompatible option
$151.99
Mr Pool Man · 6 NovMr Pool Man · checked 6 Nov
Check sellerCheck seller details
Genuine: made by Waterco. Compatible: another brand.Genuine is made by Waterco. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest compatibleLowest compatible price · $151.99
Mr Pool Man. Compare with genuine below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
Compare 1 seller
AUD, before delivery. Each price shows when it was checked.
Compatible options
1 seller
Opens Mr Pool Man in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Replace it when it has a hole or cleaning no longer works; clean it at 50 kPa above the normal pressure, at least every 12 months.
After replacing: No reset light. Waterco says to clean the cartridge when the gauge reads 50 kPa above the normal operating pressure, and at least every 12 months.
How to change the cartridge in your Waterco Opal 135
Watch the guide or follow the steps.
No clear video for this part yet. The steps cover it.
- 1Turn the pump off and close the valves. Open the air bleed screw on the lid to let the pressure out.
- 2Unscrew the lid lock ring and lift the lid off (Opal XL: lift the dome lid by its grip handles).
- 3Lift the cartridge out (Trimline C100 and Opal XL 270: two elements are stacked, with a spacer or joiner between).
- 4Hose the pleats clean, or soak the cartridge overnight in cartridge cleaner. Fit a new one if it has a hole or will not come clean.
- 5Seat the cartridge, check the lid O-ring is in place and screw the lock ring down without over-tightening. Restart and bleed the air.
Every number this part goes by
- Retail name:
- 701039
Sellers list any of these; they are the same part.
About your Waterco Opal 135
Waterco pool filter — Opal cartridge filter (3.5 bar). Its cartridge is the Opal 135 cartridge element 701039, part 701039.
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 this Waterco model
Waterco1 model
Common questions
- Which cartridge fits the Waterco Opal 135?
- The Waterco Opal 135 takes the Waterco Opal 135 cartridge element 701039.
- Where can I buy the 701039 in Australia?
- We track 1 Australian seller for the 701039; the lowest listed price when we last checked was A$151.99 at Mr Pool Man. Prices are re-checked daily and dated on this page.
- How do I fit the 701039 in a Waterco Opal 135?
- 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. Waterco says to clean the cartridge when the gauge reads 50 kPa above the normal operating pressure, and at least every 12 months.
Something looks wrong with the Opal 135 match? . Reports go to a person, not a bot.