Several valves. standard 3/4" thread can be used on most any standard US scuba cylinder. I would suggest servicing the valves before using, however they were taken off of cylinders that were in use prior to selling.
1. Thermo 300 Bar modular valve - $50 2. Thermo 300 Bar modular valve - $50 3. Sea Elite 200 Bar modular valve - $45 4. Buddy CCR inline valve - $45 (should be rebuilt... condition unknown)
