- 30-day returns on unused items
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Details
The Sera 4320 CO2 Test gives aquarium keepers an at-a-glance reading of dissolved CO2 in their water over time.
- 15ml reactive solution volume
- Long-term CO2 monitoring for aquariums
- Reactive container can be placed inside the aquarium
- Easy-to-read color indicator with reference chart
- Enough reagent for approximately 90 fills
Who it's for: Freshwater aquarium owners who keep live aquatic plants and want to track CO2 levels consistently.
Key benefits
- Track CO2 levels at a glance
- Monitor water conditions over the long term
- Read color changes against a reference chart
- Use one kit for many refills
How to use
Ingredients
Our Policies
Unused items in their original packaging can be returned within 30 days of delivery.
US orders over $75 ship free; below that, shipping is $9.99. Other countries see the rate at checkout. If customs charges you on delivery, send us the receipt and we refund it.
You can return unused items in their original packaging within 30 days of delivery. Opened cosmetics can't come back for a change of mind, but we always replace or refund items that arrive damaged, defective or wrong.
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