Speedaire 4ZL89A Mist Lubricator 3/4 Inch NPT

Speedaire 4ZL89A Mist Lubricator is a 3/4 in NPT inline device that injects a controlled oil mist into a compressed-air line to lubricate tools and actuators. It’s rated for up to 142 CFM and a maximum operating pressure of 150 psi, making it suitable for mid-size shop air runs. The unit features an aluminum body, a polycarbonate bowl with a steel guard, and a sight dome plus sight gauge for easy oil-level monitoring. The lubrication rate is screwdriver-adjustable and supported by an oil-drop controller to meter lubricant accurately; the recommended lubricant is ISO VG 32. Inlet and fittings are 3/4 in NPT, and the assembly includes visibility and service features designed for reliable operation in continual-use pneumatic systems.