The Fluval A65 fits the following:
The Fluval A65 Elite Foam Water Filter for A60 2-Pack includes two replacement aquarium filters for the Elite Hush 10 Power Filter. The Elite aquarium filter removes debris in aquarium water and encourages the growth of beneficial bacteria populations. This foam aquarium filter provides very efficient mechanical filtration for your aquarium.
Fluval A65 Elite Foam Water Filter for A60 2-Pack specifications: