i have a ultra-jet ul3335 (external filter) think its also known as a atman ef1 after searching the internet for ages ive been unable to find where i can get new internals for it from what ive read on the net alot of people have said this but nobody has said if they ever did find any or not, also most people never got manuals when buying new so was wondering if anybody knows where i can get these from? cheers