SKU: 13691876974

Fluval U4 Aquarium Internal Filter 1000L/h for tanks up to 240L

Sale price$66.14 Regular price$73.49
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

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Description

Fluval U4 Aquarium Internal Filter 1000L/h for tanks up to 240LFluval U4 Aquarium Internal Filter 1000L h for tanks up to 240L Fluval U4 Underwater Filter provides complete and efficient 3 stage filtration, including BioMax biological filtering, to create superior aquarium water quality. The U4 Filter includes practical and versatile features, making it ideal for application in fresh, marine and reptile environments. The filter provides the option of setting the flow output in 3 different positions, a key

Fluval U4 Aquarium Internal Filter 1000L/h for tanks up to 240L

Fluval U4 Underwater Filter provides complete and efficient 3-stage filtration, including BioMax biological filtering, to create superior aquarium water quality. The U4 Filter includes practical and versatile features, making it ideal for application in fresh, marine and reptile environments.

The filter provides the option of setting the flow output in 3 different positions, a key benchmark in underwater filtration. The adjustable 3-way flow control feature lets you position the water flow output to meet your specific needs. The Top Output setting provides maximum circulation and oxygenation, the Integrated Spray Bar setting provides a gentle, even flow for planted aquariums, and the Bottom Output setting is for deepwater agitation.

The filter also has a convenient flip-top lid that allows quick and easy access to the filter cartridge for maintenance or replacement. The filter can be installed vertically against the aquarium wall to create currents or customized flow patterns; it can be placed horizontally in shallow water tanks; or it can be used to create decorative features such as waterfalls.

  • Provides complete and efficient 3-stage filtration
  • For fresh, marine and reptile environments
  • Adjustable 3-way flow control feature lets you position the water flow output
  • Top output setting provides maximum circulation and oxygenation
  • Integrated Spray Bar setting provides a gentle, even flow for planted aquariums
  • Bottom output setting is for deep water agitation
  • Convenient flip-top lid allows quick and easy access for maintenance
  • Can also be placed horizontally in shallow water tanks
  • Can be installed vertically to create currents or customized flow patterns
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 13691876974

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Rosa Sanchez-Fryer
Massapequa, US
★★★★★ 5
Good quality product
Attractive and sturdy! Only draw back are the small gaps in between the weave. Not large ones but they are present. I live in Chicago and it has held up nicely with the weather.
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Reviewed in the United States on May 31, 2026
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Alina Petrychenko
West Palm Beach, US
★★★★★ 1
Do not buy it, unless you want to replace it every 6 months
Do not purchase this, it’s a waste of money. I’ve had it for only 6 months, and as you can see from the picture, the fabric is already coming apart. I don’t think this product is suitable for outdoor use. I live in an area with mild weather (mostly shaded, minimal rain, no snow, and limited sun exposure), and it still couldn’t handle that. Very disappointed. Customer support can’t help after 90 days, so the $100 I paid went to waste.
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Reviewed in the United States on October 28, 2025
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S. Stewart
Natrona Heights, US
★★★★★ 5
Dividers
Color: Black, Size: 8 Panel
Great quality
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Reviewed in the United States on April 7, 2026
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CLI
Draper, US
★★★★★ 5
Outside Privacy!
I’m using this outside and it’s exactly what I needed! Since it’s in my flowerbed I sunk the little legs slightly to add stability…so far that’s working well.
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Reviewed in the United States on June 4, 2025
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laurie conroy
San Leandro, US
★★★★★ 5
Good quality
Color: Black, Size: 8 Panel
Good quality
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Reviewed in the United States on October 7, 2025

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