Fluid R-UV is a universal fluid that has main chemicals from 6UV, 7UV and 8UV. It works with a widest range of UV inks and with all types of print heads. It’s safe to use on Epson heads. This product replaces Recovery Fluid 10UV. Do not leave this solution inside a print head for more than 3 hours. Flush the head out using the Intermediate Fluid or the flushing solution that came with the inks that were used on that print head.