H2Odyssey Pony Gauge
- Threads directly into any standard first stage high pressure port
- Nitrox compatible to 100% O2
- Reads up to 5,000 PSI
- Large numbers and colored read indicators for easy viewing
- One-way safety valve
- Perfect for back-up or stage bottles
- Measures 7/8" wide by 1" long
- Also great for double checking for hoseless transmission computers