Culligan 01016266 Backwash Flow Restrictor. When you purchase the "Culligan 01016266 EDUCTOR REBUILD KIT" it comes with 3 different sized Backwash Flow Restrictors. The brown colored one, the green one and the black one. I needed the brown one and I sold the black one so I have the green one that is for sale. This is for the do it yourselfer that realizes that more than likely the entire rebuild kit is not necessary and that replacing the backwash restrictor is most likely all that is needed to get the brine draw working properly again. The whole kit costs about $100. I am selling the green backwash restrictor for $20 by itself with shipping included. The picture of the entire kit is for illustration purposes only and is not included. I am in no way guaranteeing that this backwash restrictor with fix the brine draw problem with your water softener; it is up to you to take a chance that this will fix your problem. No returns.