Interesting enough there seems to be even more afoot. I looked at Freestyle's best buy page and their are several other Kodak stocks in the Clearout bin beside PX. Now one of the 120 stocks seems to be more a switch to 5 packs from individual rolls. But they show PX-135-24. PX-135-36, TMax100 401, TMY120 (single rolls), TX120, TXpro 8X10, as well as the arista Premium 100 24. Now both the 120 Tmax films are shown on the main page as in 5 packs.
Now I have a soft spot for Plus X, when I got my first 35mm camera back in 1965 or so, It had a 125 top shutter speed, so I did not dare to use Tri-x, and so spent much of my allowance on 50 ft rolls (all I could afford at one time) of Plus-x, (or sometimes it was 17 meter rolls of FP3 or Agfa ISS) It was only when I used Birthday Gift money to get a Practika that I could shoot Tri-X