Review on BlueStars [Pack Of 3] Ultra Durable D20 Pool Cleaner Hose Ball Bearing Swivel Replacement Part Exact Fit For Zodiac Polaris Pool Cleaners - Compatible With 180 280 380 480 PRO And More by Carmen Peterson

I purchased one of the Polaris branded part and also this 3-pack. Both were about the same price. However, there is a big difference in the quality of the parts. The Polaris part swiveled easily and I could hear the ball bearings when I shook it. These were stiff and did not swivel well easy at all. It is obvious that there are no ball bearings inside. I'm returning these and buying more of the Polaris branded part. I like to save money, but not when that means that I have to settle for an inferior product that will not work as needed.