Water type
Saltwater
Red Sea Potassium Pro Reagent Refill Kit
Restock the chemistry, not the titrator. This is the genuine Red Sea reagent refill for the Potassium Pro test kit — the same 150–450 ppm titration chemistry, without paying for a new titrator you already own.
Key features
- 40 tests — restores the full test count of a Potassium Pro kit
- Same 150–450 ppm range and titration method as the full kit
- Fresh, in-date reagents — aged reagents give an unreliable titration endpoint
- Lower cost than a full kit — no titrator included, because you don't need it again
Specifications
| Compatible with | Red Sea Potassium Pro Test Kit |
|---|---|
| Tests per refill | 40 |
| Measurement range | 150–450 ppm K |
| Test method | Titration |
| Water type | Saltwater (reef) |
What's included
- Reagents A, B and C, plus titrant, for 40 tests
This refill does not include the titrator or test vial — it restocks chemistry only.
Suitable for, and not suitable for
- Suitable for existing owners of the Red Sea Potassium Pro titrator
- Not suitable as a standalone test kit — you need the original titrator to run a test
Goes well with
- Red Sea Potassium Pro Test Kit — the full kit, if you don't already own the titrator
Warranty and delivery
Reagents carry a use-by date printed on the pack. Consumer guarantees apply under Australian Consumer Law in addition to any manufacturer terms. Standard parcel delivery applies.
Common questions
Will this work with my existing Potassium Pro kit?
Yes — it's the genuine Red Sea refill and restores the same 40-test chemistry the full kit ships with.
Does this include a new titrator?
No. It's reagents only. Keep using your existing titrator and vial.
How do I know when to reorder?
Check the use-by date on the reagents and reorder before it passes.
Is this the same chemistry as a brand-new kit?
Yes — same 150–450 ppm range and titration method as the full Potassium Pro kit.




