An orifice reducer is wonderful because it allows you to measure out precise amounts of essential oil without waste. But it can sometimes be difficult to insert the orifice reducer when filling or refilling your oil vials. Now the O Presto makes it easy! Works with our 1/4 dram and 5/8 dram vials.
How to use: Fill a 1/4 dram or 5/8 dram sample vial with oil, leaving room for the orifice reducer at the top. Lift the pressure bar. Place the sample vial in the appropriate slot (the shallow slot is for 1/4 dram vials; the deep slot is for 5/8 dram vials). Set an orifice reducer on top of the vial. Press down on the bar to push the orifice reducer into the bottle. Screw the cap onto the bottle, and you're done!
The video below shows why an orifice reducer is important:
How to use: