Clearwater Spas Pillow, 13" X 6" With Logo (Charcoal Gray) - This pillow is 13 1/2 inches wide and comes with the logo dome included. Pins measure 8 1/4" apart from center of pin to center of pin. Back of this large lounge pillow has 2 pins that fit into your Clearwater Spa receptacles in the shell of the spa.Replacement Option For: Riptide Model 4