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Item #:
14688788
ISTA I-539 External Reactor
Item #:
14688788
GBP 21
Price Details
Price
GBP 21
Excluding Shipping, VAT & Custom charges ( Shipping, VAT and custom charges will be calculated on checkout.
If Item price + shipping is below GBP 135, 20% VAT will be calculated on checkout, if it is equal or above GBP 135, no VAT will be charged. )
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Imported from USA store
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Patented impeller design completely crushes CO2 bubbles for better efficiency
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Efficiency
The I-539 External Reactor offers exceptional thermal efficiency, ensuring maximum energy output while minimizing energy consumption. This feature significantly reduces operational costs for users in industrial and large-scale applications.
Compact Design
With its space-saving design, the I-539 External Reactor fits seamlessly into limited workspaces. This portability makes installation easier without compromising on performance, appealing to users needing efficient solutions in constrained environments.
Advanced Safety
Equipped with the latest safety protocols and sensors, the I-539 External Reactor prioritizes user safety, preventing overheating and ensuring reliable operation. This feature builds trust among users concerned about workplace hazards and reliability.
Product Details
- Suitable for 158 to 264gph flow rate (600-1000 L/H)
- Features patented impeller design to completely crush CO2 bubbles
- Compact size for space-saving, suitable for external or internal setup
- Made of durable material to prevent deformation and resist acid
- Easy to clean and maintain
- ISTA Inline CO2 External Reactor
| Country of Origin | This item will be imported from US |
| Item Weight | 3 lbs (1.36 kg) |
| What is in the box | ISTA I-539 External Reactor... For more details, please check description/product details |
Who Should Buy?
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Home Aquarists
Ideal for hobbyists seeking to enhance water quality in aquariums through effective external filtration solutions.
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Aquarium Professionals
Beneficial for professionals managing large tanks needing robust filtration systems to maintain optimal aquatic environments.
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Eco-conscious Users
Great for users looking to reduce energy consumption and chemical use with efficient and sustainable filtration technology.
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Small Fish Tanks
Not suitable for small aquariums since the reactor's capacity may be excessive and lead to over-filtration.
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Budget-conscious Buyers
May not be ideal for users with limited budgets, given potential higher costs associated with installation and maintenance.
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Non-Aquatic Users
Not advisable for those without aquatic systems, as the reactor is specifically designed for functional aquarium filtration.
Product Description
ISTA I-539 External Reactor
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Customer Questions & Answers
-
Question:
What is the flow rate of this CO2 reactor?
Answer: The flow rate is between 158 to 264 gallons per hour (600-1000 liters per hour). -
Question:
What is the size of this reactor?
Answer: It has a compact size, suitable for saving space. -
Question:
Is this reactor easy to maintain?
Answer: Yes, it is easy to clean and simple to maintain. -
Question:
My filter is an eheim Pro4 350 and gph is 277. Will this work for my canister filter without restricting flow?
Answer: Always you have to interrupt your canister hose, you will lost a little bit water flow rate, but is not so much. What you have to think really is your canister hose size because ista co2 reactor is 12mm. -
Question:
What size are the hose connections?
Answer: 12mm , almost the big canister uses 16mm then you need to buy 2 ista 12 to 16 mm adapter. -
Question:
What size hoses?
Answer: 12mm -
Question:
I have this reactor but even at 2-3 bubbles per second and a sicce 1.5 pump it fills halfway with co2. What am I doing wrong?
Answer: you need to know the right water flow the reactor need -
Question:
Does it ship with the 12mm hose or do you have to buy one?
Answer: It doesn’t come with any tubing.
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“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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12 June 2026 · via Trustpilot
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Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
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Features & Benefits
- Highly efficient patented impeller design
- Crushes CO2 bubbles thoroughly
- Compact and space-saving
- Durable and acid-resistant
- Easy to clean and maintain
- Suitable for external or internal settings