Somehow I like vintage technique. I buy at 1.2.3. an old NVA (GDR Army) 3x7 liter scuba
unit mark "Hydromat 62029" with double hose diving regulator.
Through the good website of Lothar Seveke, you get easily all
information necessary for restoration of this unit. Told, done .... I start this projekt.
Attention: update 11/2008 wew checkvalves!!