This VOIT lung is the over pressure version. It came to me with perished hoses and mouthpiece. I have since replaced them with new reproduction silicone. I also did not use the tinnerman clamps as they are not conducive to diving in salt water, removal for inspection and cleaning, or hose durability. I dive almost all of my regulators so the tinnerman clamp must go. This regulator was rebuilt by Bryan of www.vintagedoublehose.com and it breathes like a champ. I used this regulator on many dives in Silver Springs during the 50th anniversary of SEA HUNT. With these green hoses and mouthpiece it really stands out.
The Scuba Museum, a must in VINTAGE SCUBA.