I have a quick-connect adapter for my Spectrapure unit. You can see them on their site. I place the RO unit in the sink, and hook it up as needed. When I'm done, I just slide the connector of, and put the RO away. It seems a bit pricey up front, but is very convenient.
If you have a larger apartment with its own laundry room, you can add a Y-adapter and shut-off valve to an existing connection, and mount the RO on the wall, or something similar.
If you have a larger apartment with its own laundry room, you can add a Y-adapter and shut-off valve to an existing connection, and mount the RO on the wall, or something similar.