Compatibility:72597 Cool gray spa pillow compatible with Hot Spring Highlife Series spas from 1997-2007: Accolade, Aria, Envoy, Grandee, ILE, Jetsetter, Landmark, Prodigy, Sovereign, Vanguard, Vista. This 72597 pillow is not backward compatible and will not fit on older models. Please verify the serial number in the Parts Finder to confirm that this part is compatible with your spa model Applicable Models:72597 Spa head pillow replacement for Hot Spring Aria (AR)2007, Grandee (GG)2007, Sovereign (II)2007, Jetsetter (JJ)2007, Envoy (KK)2007, Vista (SS)2007, Vanguard (VV)2007, Classic (F)1997-2000, Grandee (G)2007, Grandee (GQ)2002, Classic (FQ)1998-2000 More Applicable Models:72597 also fits for Highlife (Costco) (HILF)2006, Sovereign Limited Edition (ILE)2002-2003, Jetsetter (JQ)2001-2002, Landmark (S/SQ)1997-2000, Vanguard (VQ)2002, Classic 230v (FH)1996, and Highlife (K)1996. Installation Notes:The 72597 hot tub headrest pillow is held in place by two “mushroom” style posts on the back. To remove the old pillow, simply pull it off. To install, bend the pillow slightly and press firmly onto the posts. Soft & Comfortable Design:This light gray/cool gray spa neck pillow features a comfortable, ergonomic shape with smooth, rounded edges for optimal neck support. Durable, reliable, and designed to restore your hot tub to like-new condition and enhance your spa experience. Part Number: 72597 Color: Cool Grey 72597 hot pillow compatible with Hot Spring Grandee 2002-2007, Hot Spring Vista 2004-2007, Hot Spring Envoy 2004-2007, Hot Spring Vanguard 2002-2007, Hot Spring Jetsetter 2002-2007, Hot Spring Prodigy 2002-2007, Hot Spring Sovereign 2002-2007, Hot Spring Accolade 2005-2006, Hot Spring Landmark 2000-2003, Hot Spring Aria 2007, Hot Spring Highlife ILE 2003. Pillow is held on by two "mushroom" style post behind the pillow. To remove old pillow from your hot spring spa simply pull it off. To install new pillow flex pillow and press on over post. The 72597 Spa Pillow is made of high quality materials that provide superior comfort and resilience. It will not flake over time, is abrasion-resistant and durable, and can maintain its integrity even after prolonged exposure to water. The Light Gray Spa Neck Pillow features rounded corners with gentle angles and curves to provide neck support and an enhanced hot tub experience.