Check the listing for details. Chlorinator Feeder Hose Kit Elbow Tube Support Spring Screen Chlorine O-Ring. Condition: New. Listed at 18.97 USD. Features: 1.Tube support spring for Pentair R171097 replacement rainbow automatic Chlorine/Bromine feeder. Spring can stop chlorine feeder tube from kinking 2.Auto chlorinator flexible pvc tubes with 1/2-inch 90-degree NPT tube fitting and R171097 tube support spring, compatible with Pentair Rainbow automatic chlorine/bromine in-line pool and spa feeder models 320, 322 3.Chlorinator o-rings are available for Pentair rainbow chlorinator 300 and 320 lids. R172255 screen replacement can avoid clogging of the chlorinator 4.Easy to Install: Dfnidy hose is a replacement for Pentair 320 chlorinator. It is a precise replacement hose kit for chlorinators. Simply remove the old part and replace it with a new hose and support spring Package Included: 1*5/8" OD 320.