Pillow / Headrest, Tiger River Spas by Watkins. Newly designed, this gray pillow is the sole factory replacement for the: 1998 to 2007 Tiger River Bengal, Caspian, Sumatran, 1998-2004 Siberian spa models. Also the replacement pillow for the obsoleted 72600 & 72599 used on the: 2000-2003 Hot Spring Landmark spa model.