Dolphin Maytronics 9985007-R2 Tracks Long, Yellow, Case of 2 Fits the following Maytronics Dolphin Robotic Cleaners ONLY: Deluxe 3, Deluxe 4, Deluxe 5, 2x2, C6 2x2, 3001 9999326-BL4, 3001 9999326-BL, Heavy Duty - 9999389-BL4, Heavy Duty - 9999389-HD, ProX2 - 9999399X-BL, ProX2 - 9999399X-BL4, 2002 - 9999337-C, Advantage RC Plus - 9999313RC, Advantage Plus - 9999313, Orion, Enduro 21R This price includes TWO tracks - one for each side of your cleaner Please note, the inside of these tracks have the flat bar design as shown in the picture Please make sure your pool cleaner is on the list above. If it is not, this will not fit and you are responsible for return shipping.