Fluval U Series Underwater Filters provide complete and efficient 3-stage filtration, including BIOMAX biological filtering, 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 Adjustable 3-Way Flow Control feature (available in the Fluval U2, U3 and U4 models) 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 deep-water agitation.

Fluval U Filters also include a convenient flip-top lid that allows quick and easy access to the filter cartridge for maintenance or replacement including Fluval's Clean & Clear cartridge (A499). Packed with special high performance resins, Clean & Clear is proven to reduce phosphate and nitrate while preventing the spread of algae, providing you with a cleaner, clearer aquarium and healthier fish for longer intervals.

In addition, Fluval U Filters offer installation versatility: they can be installed vertically against the aquarium wall to create currents or customized flow patterns; or they can be placed horizontally in shallow water tanks or to create decorative features such as waterfalls.

The Fluval U2 Underwater Filter is ideal for use in fresh, marine or reptile environments. It comes complete with the Adjustable 3-Way Flow Control feature, 2 Foam Pads, 2 Poly/Carbon Cartridges, and BIOMAX Biological Rings.

The U2 is suitable for aquariums from 45 to 110 L.

Our standard delivery charge is £4.99 for orders under £69. For orders over £69 delivery is free of charge.

For non-UK Mainland addresses including Scottish Islands and Scottish Highlands, a charge of £19.99 will apply.

We do not currently ship to Northern Ireland

We offer a next working day delivery service for UK mainland addresses when orders are placed before midday Monday-Thursday at a cost of £9.99.

Delivery rates for our frozen products are based on next day delivery due to the perishable nature of these products and therefore will incur a £6.99 charge.

Frozen products will be delivered the next working day and you must be available to accept the goods within those times. If you are unable to accept the goods and the goods are returned to our warehouse, due to the perishable nature of these products we are unable to provide a refund.

If you are not 100% happy with your purchase from Pets & Friends, you can return it to us within 28 days of placing your order. Please let us know you wish to cancel your order within 14 days. You then have a further 14 days to return the item to us.

All goods must be returned unused, as new, in a saleable condition with the original packaging. We reserve the right to refuse a refund if the item has not been returned to us in a saleable condition.