Your pool can use any type of filter that keeps the water clean.
Pooled Energy recommends back-washable sand (media) filters, but using glass media rather than sand. If you have an old or inappropriate filter at the time of installation, we may recommend that you replace it and will be happy to provide a replacement service or you can arrange to do this separately. Please use 50mm plumbing. It is essentail that teh correct size filetr to match the pool and pump, be chosen.
Sand/media filters are the easiest to maintain and operate.