Moto Massage Jet Assembly, Warm Gray For Hot Spring Spas – 73307 by Hot Spring The warm gray colored (light beige) Moto-Massage Jet is the current factory replacement for the Solana/Hot Spot TX & SX models and for all model year Hot Spring spas prior to 2014. This color Moto-Massage jet replaces the obsoleted taupe (71897), ivory, white (70319) and cool gray (71262) colored Moto-Massage jets. This jet comes complete with the silicone air tube (70307), cap (30723) and o-ring. The head, vertebrae (spine) and large silicone/rubber tube that runs inside the vertebrae are not available separately. Item 73307 The warm gray colored (light beige) Moto-Massage Jet is the current factory replacement for the Solana/Hot Spot TX & SX models and for all model year Hot Spring spas prior to 2014.