I’m looking for a hardware pedal that can do “infinite” reverb like that on Audio Damage’s Eos.
I’ve seen a lot of people using the Eventide Space reverb pedal, can that do it?
Anyone know of any pedals that can?
EHX Cathedral? infinite mode technically is only enabled if you physically hold down one of the stomp switches, but you can easily mod the pedal with a latching switch, https://www.youtube.com/watch?v=dCtMD3XMf7s
That’s pretty cool! I’d prefer getting something that works out of the box without modding, but I’ll check that one out if nothing else comes around =)
I know that Strymon big sky has a freeze function and it sounds gourgeos!
big sky has 2 modes for that…one is just freeze and the other is infinite which adds reverbtail on top…definitly best sounding reverb ive ownd/heard …not cheap but worth it…ok a lexicon isnt cheap either. 
I have the cathedral and it doesnt require you to hold down for infinite, it can get infinite by setting it to max reverb time
space can do infinite decay…
Space has infinite and freeze functions, as on the Big Sky which Switchbox mentioned.
Both the Eventide and Strymon are excellent and extremely expensive but you do get a different class of processor for that kind of cash and several algorithms for plenty of versatility, it just comes down to which one sounds the best to your ears.
Eventide H9 with the Space algorithms of course. H9 Max has all the algos from all the Eventide stompboxes. The lower cost H9s come with one or two Space algos - to get the rest you have to buy them. Eventide currently has a special until April 1 in which the required number of algos to buy to upgrade an H9 to Max is lower.