This is an older Waterloo Seprotech RO. It hasn’t been used in 9 years. I can’t dig up much info on it, but was told by someone that it is probably 600GPH. I do remember seeing the RO in use years ago. I’d be happy to send more pics if anyone is interested. I have most, if not all of the valves that go on the front panel. I have zero time to mess with this and need to make room for other projects. If someone was handy, they might have one heck of a machine here. Fee free to call or text with any questions. I’ll try my best to answer them. I can meet the buyer if it’s not ridiculously far away. Like the ad says, best offer... 845-399-0029