Sharpe 6770 (Recommended) .01 micron
Maintenance-Free Membrane Dryer – No refrigerants or desiccants to replace - No Regeneration Required. 30 CFM @ up to 175 PSI

Provides perfectly clean air with 1 diaphragm regulator and 2nd 1/4" ball valve for main line continuation for connection to another air tool. (1st and 2nd stage still require cleaning.)