It has also been sold as Cachet Expo RF and Maco Expo RF, and there is some old stock around under those labels.

Different brands use different grading schemes (2/3/4, 1/2/3/, Soft/Normal/Hard), but it's all the same stuff, so be sure you know what the system is for the version you are buying, particularly if you cross labels. The softest grade is somewhere between 1-2 when compared to papers like Galerie or Oriental graded, and the middle grade would be somewhere between 2 and 3 on the same scale. It responds well to amidol, so you can get intermediate grades with water bath processing.