Review on 🔒 Enhanced Security with DERNORD Stainless 2 Piece Locking Device by Josue Porter

I am a retired engineer designing and building my own house. Bought three of these valves: 1 pc. 1" NPT and 2 pieces 3/4" NPT. They are used to isolate my LPG manifolds from underground plumbing. A full bore valve is important to me. In February, 3/4" and 1" valves were installed. One manifold that was presealed to test at 25psi still holds, so there are no leaks at the stem seal (the other I blew to rid the wasps of debris). No signs of electrolytic corrosion. The printing on the rubber grip cap is illegible, but the polymer is fine.