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Shop/ Fish Supplies/ Fish Tank Supplies/ Aquarium Filters/ Fluval Filters   Fluval Filters Fluval filters are the combination of innovation and intelligent application of technology to produce a first-in-class series of external and internal filters. Fluval aquarium filters achieve maximum versatility and premium performance to create healthy fish tank environments. All products are available online in the UK and all guaranteed lowest prices with rapid UK delivery. 51060  Fluval U4 Underwater Filter 1000LPH £42.99       The Fluval U4 internal filter is suitable for aquariums from 90 L up to 150. The U series underwater filters have a three stage filtration which is ideal for use in fresh, marine or reptile environments. Stage 1 foam removes large particles, Stage 2 poly/carbon cartridge traps fine debris, improves water clarity and removes impurities and then Stage 3 BIOMAX provides optimal biological filtration efficiency. The Fluval U series range are ideal as supplemental or stand-alone filters, silent, efficient, simple to install and easy to maintain. More Info