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. The U series internal filter range are an efficient reliable filter designed as the primary filter for smaller aquariums or a supplementary for larger aquariums. The Fluval U4 can be situated either vertically or horizontally which means this is perfect for both deep and shallow water aquariums such as turtle tanks.

Fluval U Series Underwater Filters provide complete and efficient 3-stage filtration, including BIOMAx biological filtering (U2, U3 and U4 models), to create superior aquarium water quality. Fluval U series filters provide the option of setting the flow output in 3 different positions, a key benchmark in underwater filtration.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 X-Men would be happy to see these evolutionary mutations, and so am I. The inclusion of features that add to the design can only be a good thing, and I hope to see this line of thinking stretched to encompass more products. Evolution and not revolution indeed! Internal Filters are an excellent option for small to medium sized aquaria. They are simple and easy to set up, they sit just inside the aquarium itself meaning they can be easily installed into any fish tank, with no troublesome pipes and hoses. They will also work well as a powerhead for water circulation, with the added bonus of the extra filtration. It is worth noting that you should clean your filters impellor every couple of weeks to ensure it is functioning normally and keeping the water moving around the tank. U series underwater filters offer superior water purification, movement and aeration capabilities and have been designed for use in both fresh and saltwater applications. Stage 1 consists of a Foam pad which is designed remove large particles from the water all part of the mechanical filtration. These foam pads should be replaced every 6 months.

The Adjustable 3-Way Flow Control feature (U2, U3 and U4 models) lets you position the water flow output to meet your specific needs. The Fluval U2, U3 and U4 Internal filter have an adjustable flow to ensure the filter meets the needs for different aquarium environments, this consists of 3 flow settings. Top output for increased circulation and oxygenation, spray bar for a gentle flow designed for planted aquariums and the bottom output designed for deep water circulation.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. adjustable 3-way flow control: Top output for circulation and oxygenation, integrated spray bar for a gentle even flow, and bottom output for deepwater agitation The new Fluval U Series of filters may look the same, but there have been several tweaks to improve the design. Fluval U Underwater Filter provides complete and efficient 3-stage filtrationto create superior aquarium water quality. All models come with a Bio-Foam filter pad to remove large particles. The larger 2 sizes also include a Poly-Carb pad to assist with removal of fine particles, chemicals and odours. They also have the addition of Biomax filter nodes to assist with biological filtration.