Review on SharkBite U008LFA Straight Coupling Plumbing Fitting: PEX Fittings, Push-to-Connect, 1/2 Inch Coupler for PE-RT, HDPE, Copper, CPVC by Rico Posley

An expensive coupler, but it's so fast and allows you to mix and match different tube types so perfectly that it really isn't a problem. I had to connect old copper to new PEX in a very small hole and in an old building. All frames were dry and within an inch. While I could steam a copper pipe with a PEX fitting with the protection it needed, starting a fire in a hidden room wasn't worth the risk. With this fixture I was able to eliminate torches, solder, flux, radiator putty and flame arrestors. I didn't have to worry for more than a minute about the apartment building's smoke alarms going off or the water shutting off. All in all a bargain for the performance.