Wide Application - Fits for Sundance 780 Series Spas 2007-2017. Compatible Models: Camden 2007-04/2013 (4), Certa 2007-03/2017 (3), Chelsee 2007-03/2017 (4), Hamilton 2007-03/2017 (4), Dover 2008-03/2017 (3), Montclair 2013-03/2017 (3). Perfect Designed – It adds both style and functionality to your hot tub, and its ergonomic design follows the contours of your body, allowing you to enjoy an absolutely luxurious spa treatment in the comfort of your own home. Easy to Install –Just snap the assurance into place, and you're ready to immerse yourself in the ultimate relaxation experience. Installation can be finished within several minutes. Superior Material – Our pillows are made out of the latest injection molding technology, the bump texture on the surface increases friction and holds the head and neck in place. With 100% waterproof, heat-resistant, superior resistance, durable, meeting or exceeding OEM specifications. Satisfaction Guarantee - Besttruck values customers shopping experience and provides customers with a good shopping environment. If you are not satisfied with the product when you receive, you can choose to return it within 30 days, we provide a one-year warranty, or you can feel free to contact us. Fits for Sundance 780 Series Spas 2007-2017. Compatible Models: Camden 2007-04/2013 (4), Certa 2007-03/2017 (3), Chelsee 2007-03/2017 (4), Hamilton 2007-03/2017 (4), Dover 2008-03/2017 (3), Montclair 2013-03/2017 (3).