Used RO filter needs new filters, membranes, and restrictors so its basically just housings. This unit was originally set up to run 200gpd but can run whatever flow you want depending on the flow restrictors. I ran this in front of a 3 stage DI which I am still using. My neighbor gave me a new unit for free so this one has been sitting around for a year. I scavenged the flow resrictors and back flush valve to use on my new system so you will need to get those as well. All of the parts and filters are readily available on BRS or Amazon so if you are inclined to get a few odds and ends you could have a pretty nice RO unit for under $300.
