HOB Filter inserts w/out carbon?

[theoutdoorsykid]

I have a 30 gallon freshwater planted with a 60 gallon HOB Whisper Power Filter. I currently use the Tetra Whisper replacement filter cartridges, but I can only find the ones with carbon included. It is a waste of money because I don't use the carbon. Alll I need are the white filter bags - no plastic skeletons or carbon needed. Any brand is okay, as long as they fit. Ideas?

 

[eco23]

They sell big rolled up sheets of the blue filter media. Just take a pair of scissors to it and cut it to size. Remember though to never change your media until it's literally falling apart.