The Marina i25 Replacement Power Cartridge is specifically made to fit inside the Marina i25 Internal Filter. Its multi-stage filtration system helps remove toxic ammonia, pollutants, odours and debris from aquarium water, helping to keep it clean and clear.

Key Features

• Made for the Marina i25: Specifically designed to fit inside the Marina i25 Internal Filter.
• Multi-stage filtration: Water passes through three filtration stages for effective aquarium water treatment.
• Zeolite chamber: The first stage uses zeolite to help remove toxic ammonia from the water.
• Activated carbon chamber: The second stage uses activated carbon to help remove pollutants and unwanted odours.
• Filter floss: The final floss layer traps debris inside the cartridge.
• Clearer water: The cartridge's water flow combines the different filtration stages to help maintain crystal-clear aquarium water.
• Recommended replacement: For best results, replace the cartridge every 4 weeks.

The Marina i25 Replacement Power Cartridge combines zeolite, activated carbon and filter floss in one convenient cartridge, providing an effective way to help keep aquarium water clean and clear.

Aquacadabra acts as credit broker/intermediary and not as a lender.

Klarna's credit products are provided by Klarna Bank AB, which is authorised and regulated by the Swedish Financial Services Authority, with limited supervision by the Financial Conduct Authority. More information can be found here.

Newpay finance options are provided through Deko’s platform by NewDay. P.D. Aquatics Ltd, t/a Aquacadabra is an Introducer Appointed Representative of Pay4Later Ltd, t/a Deko, which is authorised and regulated by the Financial Conduct Authority (ref no 728646) and is a credit broker, not a lender. NewDay Ltd is authorised and regulated by the Financial Conduct Authority (ref no 690292) and is authorised by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services (ref no 555318). More information can be found by clicking the newpay option above, or in the Newpay FAQs.

We really want you to be happy with the product that you've received. If however, when the goods arrive they're not what you want, then no problem - we have a 60 day no quibble return guarantee. Just let us know that you're going to return the item(s) by contacting us(stating your Order Number) and complete the returns packing slip that will have been included with your delivery. This will help us to quickly identify the item that you have returned (unopened and unused) - and we'll put a refund through for you.