Review on Restrictor APLusee Pressure Reducer Shut Off by Rudolph Mceachern

I wrote a scathing review earlier because this adapter didn't fit my two shower heads when it first arrived. It just wouldn't screw in, although the diameter and number of threads seem about right. About 5% of the other reviewers of this product reported the same issue. A week later I bought a second adapter from a different brand. When I tried screwing this one in, it fit, and I tried screwing this one back in, and it fit too! The only explanation I can think of is that maybe the thermal expansion can change whether the item fits or not due to a temperature difference of a few degrees. It was a strange experience. In any case, the limiter works and has worked well for me so far. If it doesn't work for you, I would recommend warming it up or cooling it down a bit and trying again.