Reducer, 3/8" NPT Female to 1/4" NPT Female
 
First Port: 3/8" Female
Second Port: 1/4" Female
Thread Type: All Ports are NPT Thread
Max Working Pressure: 10,000 PSI (700 Bar)
 
Since all major brands of hydraulic tools tend to use 3/8" NPT hoses, these fittings can be used to connect those hoses to tools with 1/4" NPT fittings. These could also be used to mount gauges or smaller 1/4" NPT quick connects like the CF2 and CM2.