Have any of you plumbing experts seen a bunch of these?
I saw a plumber actually install one of these on an existing copper pipe that had little (less than an inch) clearance to the newly installed duct next to it. (They were running PEX to supply the sink which had been moved during a bathroom remodel.) He stuck it on firmly then spun it to line it up and jammed in the pex to the new service drop. DONE!
Says the things support tons of water pressure (well above standard household pressures) and he hasn’t had one leak yet… I forgot to ask how expensive they are, so I looked 'em up