• Fluval 4 Underwater Filter Foam Insert
  • 2 Pack
  • Fluval Foam inserts are specially sized to fit

Foam inserts remove particulate wastes from the aquarium. They also provide many locations for the growth of beneficial bacteria. The foam will gradually fill with trapped debris and require rinsing every two weeks. Re-use of the foam can help protect bacterial colonies and provide continual biological filtration.

This Fluval Foam Sleeve Insert is designed specifically for the Fluval 4 Underwater Filter. It is an effective mechanical media that removes debris from the aquarium and encourages populations of beneficial bacteria that are important in maintaining the proper biological balance in the aquarium.

Delivery Information

Fast Free UK Delivery on orders over £60.00.*
Smaller orders under £60.00 are subject to a £4.95 delivery charge. Delivery will typically be made within 2 - 3 working days but may be extended during peak times.

We Can Offer Next Day Delivery for £7.95*
To meet our deadline for this service you must order before 11.00am to ensure delivery for the next working day. This excludes weekends and bank holidays.

*Extra charges or restrictions will apply to certain UK postcodes. These include parts of Scotland, The Highlands, Northern Ireland and offshore Isles. Please note Next Day delivery is not available to these locations. Please click here for a full list of postcode exclusions and contact us today for a personalised quote. 

Customer Reviews

Overall Rating 4.5 / 5 Based On 5 Reviews

Delivery 5 / 5
Quality 5 / 5
Price 5 / 5

The only website which seems to sell this filter

This is the only website which seems to sell this filter media. The filter sponges were well packaged and fast delivery too. I will buy from them again when I need more of these filter sponges.

Delivery 5 / 5
Quality 5 / 5
Price 5 / 5

Very good buy when hard to find

Will buy from this First Class seller for sure.

Delivery 5 / 5
Quality 5 / 5
Price 5 / 5

Is a absolutelly recomendable seller.

Wonder seller, all perfect, thanks.

Delivery 3 / 5
Quality 5 / 5
Price 3 / 5

Foam filter rescue

The filter sleeves came a day or two later than first anticipated (I ordered on a Saturday and they arrived the following Wednesday) but fortunately I managed to keep the old one going just long enough! It was reassuring to know that you could still get the sleeves - even though they were a bit pricey for just a bit of foam! But many thanks

Delivery 2 / 5
Quality 5 / 5
Price 5 / 5

spot on

spot on

Review This Product
Questions and Answers (1)
Carree Acton Asked:

What are the dimensions of this foam insert?

We Replied:

Dear Carree Thank you for your question. Diameter 60mm, Length 220mm. Should you wish to contact us further or to place an order, please call us on 0121 355 7701. Thank you for using our online Q&A system. Kind regards Dan Everton

Friday 05th, July, 2019

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