Keep your tank water fresh and clear with these replacement carbon cartridges from Unipet. Designed to work with the Unipet undergravel filter, they draw out the invisible stuff that clouds water and stresses fish — gases, odours, and dissolved organic compounds — leaving conditions that are noticeably cleaner.
Replacing cartridges on a regular schedule is one of the simplest things you can do for your fish. Unipet recommends swapping them out every four to six weeks, or more frequently if your tank has a higher fish population.
- Pack of 2 replacement carbon cartridges
- Compatible with Unipet Under Gravel Filter models 1114 and 1115
- Removes gases, odours, and dissolved organic compounds from aquarium water
- Replacement interval: every 4–6 weeks (more often with higher fish loads)
Stocking a spare pack means you won't be caught out at the next change — a small habit that makes a real difference to water quality over time.
Shipping
Free tracked delivery on every order via Australia Post, dispatched from our Moorabbin (VIC) warehouse — 98% of orders sent within 24 hours. Express Post available at checkout. We currently ship within Australia only. Read the full shipping policy →
Returns
Faulty, damaged or not as described? We'll make it right with a refund, replacement or repair — and we cover the return postage.
Changed your mind? Return unused items in their original packaging within 30 days; return postage is at your cost. Opened treats & food can't be returned for change of mind, for hygiene reasons. Read the full returns & refund policy →
