“As a DIY home plumber there is one thing you can be certain of: You WILL eventually have leaks and it is often in the winter. Why? In the Winter water authorities crank up the pressure to reduce freezing in their pipesThat is where these crimp rings come into play. They go over Pex plastic piping and crimp down to form an easy water proof seal. These rings are of great quality and crimp well. They are available in several sizes, so check to be sure which you need. Leaks happen at the worst time and having a few dollars of parts will be worth it's weight in gold.. or a plumber's bill which is about the same thing. Learn a few basics and you will save a fortune.”
“Good bulk pack of stainless 1/2 cinch rings for Pex-B plumbing. Packaging was pretty bad - just a tight plastic bag that can't be resealed. Rings themselves work fine though. As basic plumbing equipment, they're hard to get wrong.”