HPR second stage for US Divers and Voit

The famous Vintage Double Hose HPR 2nd stage is a complete replacement for original 2nd stages found on all DA, Phoenix Royal Aqua-Masters and Voit regulators (not the Trieste).

You will enjoy lower breathing resistance. The ease of adjustment, adjustable venturi is worth it alone. You will also have no lever tabs or diaphragm tabs to align, You can just use a single stage diaphragm and be done with those two stage tabs.

A final bonus is there is no permanent modification of your vintage regulator. You can restore it to the original configuration whenever it suits you.

Luis developed this system before 2012 and it was tested extensively by many beta testers and later sold by VDH for about a decade. The HPR has not been available until now.