Features - NYM :  
• Scale: 0-70 bar

• Diameter: 63mm, 100mm, 150mm

• Size of connection: 1/4'', 3/8'' with Bottom Connection

Features - ITAP :  
• Scale: 0-10 bar

• Diameter: 63mm

• Size of connection: 1/4'' with Back Connection

Descriptions:
63mm x 1/4'' Pressure Gauge
Pressure Rating :  0-100 PSI , 0-150 PSI , 0-200 PSI , 0-300 PSI
100mm x 3/8'' Pressure Gauge
Pressure Rating : 0-100 PSI , 0-150 PSI , 0-200 PSI , 0-250 PSI , 0-300 PSI , 0-400 PSI , 0-500 PSI , 0-600 PSI
150mm x 3/8'' Pressure Gauge
Pressure Rating : 0-1000 PSI