No worries! I've been told that their support staff is very help and can help you size the exact unit you need. You tell them tank size, what level of sterilization, they can tell you flow you need as well as size unit.
I will warn you, they don't come cheap. I have a 114 watt unit, new is is $800+ depending on where you buy. But it is also a quality unit.
I will warn you, they don't come cheap. I have a 114 watt unit, new is is $800+ depending on where you buy. But it is also a quality unit.