Temprite offers both adjustable (Model #20-590) and non-adjustable (Model #25-590) oil level controls.
Both models are compressor mounted.
NOTE: Be aware of your system's requirements. If you are using a split suction header, i.e., +20°F, -20°F, you will need two (2) A-7 pressure-reducing valves.
See schematic High Pressure Oil System with Split Suction