Fluval Underwater Filter U4 (130-240L) Cat Bowls & Feeding Acc only put it on for

only put it on for short periods of time

Beaphar Lactol has a superior amino acid content

The large radius of the protective collar somewhat limits visibility

Height adjustable

Fluval Underwater Filter U4 (130-240L) Cat Bowls & Feeding Acc only put it on forFluval Underwater Filter U3 (90 150L) The Fluval U Series are underwater filters that offers outstanding 3 stage filtration, increased water movement and vital aeration. Fluval U Series internal filters are the perfect solution where external filtration is not possible. Complete and efficient 3 stage filtration, including BIOMAX biological filtering Ideal for fresh, marine and reptile environments. Now with new and improved design features!