Hagen Fluval U3 Internal Filter - A475 pallet Offer food when koi are

Offer food when koi are actively seeking nourishment for best results

Durable components made to match original equipment standards

which is perfectly embedded in the water circulation in the Bioflow L filter system

Slow-sinking pellets mimic natural prey

Hagen Fluval U3 Internal Filter - A475 pallet Offer food when koi areFluval internal powerfilters have been the staple of the hobby for many many years. The latest generation of Fluval internal powerfilter is the U Series which benefits from all of the learnings of the its predecessors. With four models available, the Fluval U Series is suitable for aquariums up to 200lts. The U Series is installed within the aquarium using suckers to attach it to the back glass of the fishtank. Water is drawn through the filter's