1/4″ NPT mini precision lubricator is a drip type lubricator with an external adjustment screw and is designed for low air flow applications where space is a consideration. The bypass system allows full air flow with minimum pressure drop and assures proper air/oil over full operating range. With its 1 ounce metal bowl, this mini precision lubricator offers a maximum inlet pressure of 200 PSI. Requires approximately 1 CFM of air flow to deliver oil, with a maximum of 16 SCFM.