This is the Scubapro Color Cover for S600 Scuba Diving Regulator Features: Add some spice to your diving rig. Choose from these great colors: Purple, Blue, Red, Pink, Yellow, Orange and White. Available as additional accessories, sold separately. Add more color to your S600 regulator for a totally customized look with these interchangeable S600 purge covers. Available in seven vibrant colors. Pick a color that celebrates your diving style!