Description: 【Automatic Chlorine/bromine Feeder Replacement Tube】: The packaging consisting of two black tubes is very suitable for models 320 and 322. 【Size】: Each tube is 7 3/8 "long, with an inner diameter of 1/2" and an outer diameter of 5/8 ". Connect the chlorinator body to the pipeline tee. 【Suitable】: The 1/2 "uniform inner diameter of the pipe is completely suitable for R172272, 1/2 inch NPT 90 degree ferrule joint, with nut and Bentell part number R171097 ferrule support spring, and the metal spring is wrapped around the length of the short black pipe 【Material】: Flexible PVC Tubes made of high quality PVC material, sturdy and durable 【Easy to install】: Loosen the compression nut and pull out the lower end of the old chlorine supply pipe.Remove the compression nut and sleeve support spring from the old sleeve and transfer them to the new sleeve. Size Chart: 185cm/72.83inch Package Includes: 2 Flexible PVC Tubes Note: Please allow slightly errors due to manual measurement and different monitors.