I have purchased and used various sizes of the shark bite and I absolutely love them. I appreciate the option of buying (for example) one that will go from 1/4" to 1/2" or 1/2" to 3/4" and so on. Or from one size pipe to repair a pipe of the same size. I had one of these on a piece of copper tubing, outside. After about 4 years it did begin to leak, however; it was from the several sections of piping and not from the shark bite itself. I will always depend on these as opposed to doing it the old fashioned way with welding and a high paid plumber (even tho a plumber may be needed sometime). But these are the best option ever. Inside or out, they are very dependable.