H2Odyssey Pony Gauge Bottle Fill Pressure Checker Scuba Diving

Description

This item features: 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