https://www.johnsoncontrols.co.uk/Campaigns/P50-Marine-Fire-Extinguishers
P50 Portable Gas and Powder Fire Extinguishers for Marine Applications | Johnson Controls
The unique P50 foam and powder fire extinguishers use the design technology of composite materials to manufacture world-beating extinguishers for the marine...
powder fire extinguishersmarine applicationsjohnson controlsportablegas
https://www.firesupplydepot.com/dry-powder-extinguisher-pressure-gauge-195.html
Pressure Gauge for ABC Dry Powder Fire Extinguishers - 195 PSI
This replacement pressure gauge is for Amerex Dry Chemical Water Fire Extinguishers .
powder fire extinguisherspressure gaugeabcdrypsi