I have several types of aquarium filters refill cartridges we no longer need; yours free for the taking. Hopefully someone can use these. Email me if you are interested and I'll send you our address to pick them up from our house in HP. Note, these are all filter cartridge refills, actual filter equipment NOT included. here's what I have A) 4 disposable filter cartridges for the Tetra Whisper Bio-Bag filter - LARGE - (Filter bags and carbon packets only, no frame) B) 2 disposable filter cartridges for the Tetra Whisper Bio-Bag filter - MEDIUM - (Filter bags and carbon packets only, no frame) C) 1 filter pack for the "Supreme ovation 700 submersible power jet filter (includes plastic sponge-like filter square and plastic cartridge with carbon) Martha -- Martha Riecks mriecks@gmail.com