Got one of these used for sale. Asking 50 dollars and you cover shipping. Theres no problems with it at all, I just dont use it anymore. Here's a link to morebeer where I got it from. Comes with the t adapter to hook into keg out post, with ball lock.
https://www.morebeer.com/products/mark-ii-corny-keg-carboy-washer.html
https://www.morebeer.com/products/mark-ii-corny-keg-carboy-washer.html