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Sera
Sera O2 Test
⃀ 67.20
Inclusive of VAT
- Oxygen level test kit
- 60 measurements per kit
Earn 201 Pawsome Points
Purchase options
- Free delivery
- Skip anytime
- Cancel anytime
⃀ 57.12First order
⃀ 60.48Each repeat order
Delivery frequency
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Skip or cancel according to the Auto Delivery terms.
Auto Delivery terms
15% off 1st Autoship, 10% after! (Prices update with daily deals)
Auto Delivery is managed by Seal Subscriptions. Your first order is charged when you check out; each following order is charged on its delivery cycle and can be skipped, rescheduled or cancelled from your account.
Full Auto Delivery termsPawsome Points
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Interest-free instalments on ⃀ 67.20. Choose Tabby or Tamara at checkout.
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Delivery by Sat, 10 Oct to DubaiOrder before 5PM today to receive this deliveryEstimated for Dubai — pick your emirate above for your own date.
- Free delivery from ⃀ 100.00
- Genuine product
⃀ 15.00 delivery on orders under ⃀ 100.00 to Dubai
Exclusive offers for you
10% off your first order
New customers, no minimum spend
Use code: FIRSTORDER10
Exclusive offers for you (2)
10% off your first order
New customers, no minimum spend
Use code: FIRSTORDER10
10% off when you come back
On orders above ⃀ 500.00 · Returning customers
Use code: REPEATCUSTOMER
One code per order, on full-priced items. The cart applies it at checkout.
Easy returns

Changed your mind? Send it back.
Most of what we sell can go back within two weeks, free, as long as it is still as it arrived.
- Within 14 days of receiving your order — your order page counts the days left.
- Unopened and unused, in its original packaging, with the tags still on.
- Ask from the order itself: sign in, open Orders, then Request a return.
- Free — we collect the parcel from you. Items on sale are non-returnable.
Arrived damaged, or not what you ordered? Start a return request and we will put it right, whatever the item is.
Description
Monitor Your Aquarium's Oxygen Levels with Precision
The Sera O2 Test is your essential tool for maintaining a healthy aquatic environment. With a compact volume of 15ml, this test kit allows you to effortlessly monitor the oxygen levels in your freshwater aquarium.
Key Features:
- Rapid Results: Get accurate readings of your aquarium's oxygen levels within minutes, ensuring you stay informed about the health of your fish.
- Prevent Oxygen Deficiency: Recognize early signs of low oxygen, such as quick breathing at the water surface, and take immediate action to protect your aquatic life.
- Convenient Usage: Each kit provides sufficient solution for approximately 60 measurements, making it a cost-effective choice for ongoing monitoring.
- Emergency Solution: Pair the test with sera O2 plus for a quick oxygen supply in case of deficiencies, ensuring your fish thrive in a well-aerated environment.
Why Choose the Sera O2 Test?
With the Sera O2 Test, you can take proactive steps to ensure optimal conditions for your aquatic pets. Regular monitoring not only enhances their well-being but also contributes to a more balanced and vibrant aquarium ecosystem.
Product details
- Brand
- Sera
- Type
- Aquarium Water Treatments
- Barcode
- 4001942049146
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