Carbon GFO reactor selection

[Reef-Geek]

I've used TLF and BRS reactors for carbon and GFO and I don't like either of them, TLF is built cheaply and you have to tight it very hard for a good seal. BRS deluxe reactor is built like a tank but I hated the upside down idea, the sponges just cannot hold it's position all the time.
can anyone recommend something built to last and easy to replace media?