Fluval Underwater Filter U4 (130-240L) Cat Bowls & Feeding Acc use their hiss sound to

use their hiss sound to drive off predators and our domesticated pets have an instinctive sensitivity to this sound

The large radius of the protective collar somewhat limits visibility

only put it on for short periods of time

GLO Electronic Fluorescent Ballast and End Caps is ideal for illuminating aquariums

• Provides necessary UVB rays for optimal calcium metabolism

Fluval Underwater Filter U4 (130-240L) Cat Bowls & Feeding Acc use their hiss sound toFluval 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!