5 gallon (18 L) glass fish tank with LED light built into lid. Pump is a marina slim S10. Comes also with Heater and bobbing thermometer. No gravel, it was too gross so I garbaged that.
Tank itself is fully cleaned out, but the pump/filter/heater etc could use a vinegar soak. No filters for the filter, you can get them at pisces or online
Free Free Free Free for pickup
Actually have an even smaller hexagonal plastic tank as well. It's maybe 2 gallon? Comes with lid with light. Also Free.