I am having a tidy up of what I've got.
I have 2 "triact" twist lock krabs. Petzl "OK" with the orange gate like this https://www.petzl.com/INT/en/Professional/Connectors/OK
No idea why I bought them, it seemed like a really good idea at the time and they are great krabs, but.. these days I do as much or maybe more underground as I do above ground.
Krabs with a self twisting gate like the "OK" are great for many climbing uses, roped access, arborists/tree surgeons and all sorts, but not underground subject to mud and filth as mud gets inside the gate and clogged up and they don't self-twist closed, so they are no good to me. I don't want and can't afford multiple sets of gear for above/below ground.
If anyone is new and starting out in climbing and needs 2 "OK" krabs like in the link above (and has a good reason why you deserve them) let me know and they're yours for the cost of the postage donated to charity.