The Pentair RP150 takes the Pentair Posi-Clear RP150 cartridge element R173216 as its cartridge; Australian sellers list it from A$197.00 as of 28 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your pool filter
Pentair RP150
Pool filter
Confirmed against Pentair's listConfirmed against Pentair's own compatibility list
Not yours? Change
Takes the R173216 cartridge
Posi-Clear RP150 cartridge element R173216 · check the code on your old part before ordering.
Your pool filter
Pool filter
Confirmed against Pentair's listConfirmed against Pentair's own compatibility list
Takes the R173216
Cartridge · check the code on your old part.
Other Pentair pool filters and their cartridges
The R173216 fits the RP150 only. These Pentair models take a different cartridge:
GenuineGenuine Pentair
See seller
No genuine seller tracked yetNo genuine seller tracked yet
CompatibleCompatible option
$197.00
Heater and Spa Parts · 28 OctHeater and Spa Parts · checked 28 Oct
Check sellerCheck seller details
Genuine: made by Pentair. Compatible: another brand.Genuine is made by Pentair. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest compatibleLowest compatible price · $197.00
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AUD, before delivery. Each price shows when it was checked.
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How long it lasts
Replace it when it is worn or damaged.
After replacing: No reset light. Read the pressure gauge: note the reading with a clean cartridge and clean it when the reading climbs.
How to change the cartridge in your Pentair RP150
Watch the guide or follow the steps.
No clear video for this part yet. The steps cover it.
- 1Turn the pump off, close the valves and open the air relief valve until the gauge reads zero.
- 2Release the lock ring and lift off the lid.
- 3Lift out the cartridge and hose it clean, or fit a new one.
- 4Refit the cartridge on its centre core, check the lid O-ring, refit the lid and lock ring, then restart and bleed the air.
Every number this part goes by
- Retail name:
- C-9415
- Retail name:
- R173216
Sellers list any of these; they are the same part.
About your Pentair RP150
Pentair pool filter — Posi-Clear RP cartridge filter. Its cartridge is the Posi-Clear RP150 cartridge element R173216, part R173216.
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 Pentair model
Pentair1 model
Common questions
- Which cartridge fits the Pentair RP150?
- The Pentair RP150 takes the Pentair Posi-Clear RP150 cartridge element R173216.
- Where can I buy the R173216 in Australia?
- We track 2 Australian sellers for the R173216; the lowest listed price when we last checked was A$197.00 at Heater and Spa Parts. Prices are re-checked daily and dated on this page.
- How do I fit the R173216 in a Pentair RP150?
- 4 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. Read the pressure gauge: note the reading with a clean cartridge and clean it when the reading climbs.
Something looks wrong with the RP150 match? . Reports go to a person, not a bot.