Fluval Underwater Filter U4 (130-240L) Category_Royal Canin Dog Food To further help ensure optimal

To further help ensure optimal water quality

8 – 14 drops twice a day

Gravel Guard

Small - Medium  40-55cm /20mm Suitable  for West Terrier size Medium  50-65cm /20mm Suitable for Border Collie size

The advantages:

Fluval Underwater Filter U4 (130-240L) Category_Royal Canin Dog Food To further help ensure optimalFluval 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!