Eventide Space Reverb in good used condition. No power supply.
From the manufacture:
The Space reverb pedal offers a variety of spatial effects that raise the bar for stage and studio. From your standard Halls, Rooms, and Plates to the otherworldly Blackhole®, MangledVerb and Shimmer, Space has got you covered. Fun Fact: The pedal features infinite reverb options plus, the HotSwitch allows for instant parameter change with the press of a button.
Space includes 12 Reverb and Delay combination effects: