Compatible Model- The 77444 Grey Pillow fits for Hot Springs/Hot Spot Relay (2015-2019), Rhythm (2015-2019), Tempo (2015-2019), SX (2011-2019), TX (2011-2019) spas Comfort Enhancer- Provide gentle resting surface for the head and neck. Comfortable support helps to alleviate tension in the neck and upper back, allowing users to fully relax and enjoy their spa experience Ergonomic Design- Fit the natural curvature of head and neck with bump texture increases friction, promoting proper alignment when seating or reclining Stable Construction- .
eBay