Nemrod closed its doors in 1998, on the Snark III as well as all of its other products. I was able to buy a factory new Snark III back in 1987, many years after the last USD/AL DH came off the line. If I were going to purchase a new regulator today with the forethought of using it for the next 30 years, I would probably go with a Poseidon Cyklon or Jetstream [Odin] an AL Conshelf 14 or an Atomic B or Z series. I am not too concerned about the polymer 2nd stages lasting the full 30 years, as I have a USD Conshelf SE that has already lasted more than 30 years and is still going strong.
