AquaManta EFX External Canister Filter (200/300/400/600)

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AquaManta EFX External Canister Filter (200/300/400/600)
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efx external filter with boxes in 4 sizes and tap set cable in grey finish

AquaManta EFX External Canister Filter (200/300/400/600)

  • EFX 100 for aquariums up to 150 L
  • EFX 200 for aquariums up to 200 L
  • EFX 300 for aquariums up to 300 L
  • EFX 400 for aquariums up to 400 L 
  • EFX 600 for aquariums up to 600 L
  • High power and quiet operation
  • Quick-release taps
  • Exclusive to Maidenhead Aquatics
  • 4-year warranty
  • Replacement Media available here

Maidenhead Aquatics are delighted to bring you another exclusive product- the AquaManta EFX External Filter

The EFX filters combine the latest technology to provide a quiet and efficient filter that delivers what you expect - superb water quality. The combination of multiple media’s ensures the balance of mechanical, chemical and biological processes, ensuring healthy water conditions in your aquarium. Water enters the filter and is pumped to the base of the canister filter where it is evenly distributed across the base. From there it flows upwards firstly through the 15ppi Course Foam to extract the larger particles. The 2nd phase is the Activated Carbon Module which traps the finer particles, helps remove dissolved organic matter. Carbon also removes chloramines, Chlorine, heavy metals as well as helping to maintain clear water by removing ‘dyes’ from the water. Water then passes to the Advanced Biological Media which is where most of the transformation of ammonia and nitrites will take place through specific bacteria that will colonise on the extremely porous surface of this excellent media. In the final chamber of the filter, the water first travels through a Fine Filter Foam that provides additional biological filtration properties. The Phosphate Removal Pad removes unwanted phosphates from the water helping to eliminate algae and slime growth in the aquarium. It improves water quality and reduces maintenance requirements. Finally, the White Wool Filter Pad removes microscopic particles and polished the water before it returns to the aquarium.

Key Features

Quiet and Efficient
The AquaManta EFX filters boast a high powered yet quiet and energy-efficient design with a quick-release tap system that aims to ensure simple mess free maintenance.

Integrated Priming Button
The integrated Priming button means effortless restarting of the filter after it has been powered off and emptied. A simple button press is much easier than the pump handles fitted in many competitors external filters.

Wide Selection of Filter Media Included
They come supplied complete with all filter media and accessories for quick and easy to follow set up, as well as a complete step by step instruction manual included ensuring successful fish keeping. On top of all that they have a 4 Year guarantee!

EFX 200 EFX 300 EFX 400 EFX 600
Aquarium Volume Up to 200 L Up to 300 L Up to 400 L Up to 600 L
Flow Rate 800 L/H 1100 L/H 1400 L/H 2700 L/H
Power 12.5 W 22 W 22 W 32 W
Max Head Height 1.3 m 1.5 m 1.5 m 2 m
Filter Dimensions 19 x 19 x 33 cm 22 x 22 x 32 cm 22 x 22 x 40 cm 33 x 33 x 54 cm

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Delivery costs for your order will be calculated during the checkout process based on your delivery address and the contents of your basket. You will only pay one delivery charge for your order. Express delivery is FREE for online orders OVER £39 unless any of the points below become a factor.

  • Some large items like aquariums, ponds and pond liners will have an additional charge of £45.00 to help offset the cost of a pallet delivery.
  • Orders containing a physical gift card will have an additional charge of £2.45 to cover the cost of materials and delivery (digital gift cards are a free alternative).
  • Orders to highlands, islands and Northern Ireland may incur an additional delivery charge displayed at checkout this is based on the postal code provided. DPD provides a list of postal codes which have additional surcharges. Some of these post codes may also take 2 working days to arrive, even on express. Pallet deliveries cannot be sent to these post codes.

We only ship to the UK and cannot ship internationally.

We aim to dispatch items that are currently in stock on the same working day if they are ordered before 2.45 pm (excluding Bank Holidays). Orders after 3pm will be dispatched the following working day, unless it fits any of the below criteria:

  • Orders containing live plants will take up to 2 weeks to arrive. We take a week's worth of customer orders and then inform the plant farms of the specific quantities we need to fulfil that week's order to avoid wastage.
  • Pallet orders containing large items like big aquariums will take additional time to arrive as they are sent by a third party. These orders will NOT be dispatched until we have been in touch to arrange a delivery date, this is to ensure someone is available at your address to sign for the delivery. Deliveries will generally be delivered ‘curb side’ within the terms of the agreement we have with our couriers so you will need to make arrangements to transfer larger items into your home yourself. Unfortunately, our drivers are not insured to transfer the aquarium into your home.
  • Physical gift cards and items from the gift shop (such as clothes, towels etc) are sent with 1st Class Royal Mail. Delivery usually takes 1-2 working days, though in rare cases and orders placed closer to public holidays (Christmas, Father’s day, Mother’s day etc.) may be longer.


If you are not 100% satisfied with your purchase online from our website, you can return the product and get a full refund or exchange the product for another one, for up to 21 days from the date you purchased it.

We strongly suggest signing up for an account with as this will allow for some additional returns options like return to your local store.

If you checkout as a guest you will need to return the product to Maidenhead Aquatics, PO Box 619, Egham, Surrey, TW20 2BS, please package the order (along with a packing slip or a note including your name, address and order number).

Large pallet items like aquariums are deemed delivered successfully with no damage once the the driver has left the property. If a report of damage is submitted after the driver has left we may be unable to assist with replacements. We recommend refusing a damaged delivery, this is the fastest resolution.

Our full terms and conditions can be found here. When you place an order with us online you are agreeing to these terms and conditions.

For delivery before Christmas, orders must be placed on or before 3pm on Wednesday 20th December. We cannot guarantee delivery of these orders pre-Christmas as we are reliant on our couriers, but will use our best endeavours to get orders placed on this date out to you before Christmas. For full details of our festive delivery and opening times click here

Please note: online orders placed after 3pm on Friday 22nd December will not be dispatched until the New Year. For full details of our festive delivery and opening times click here