This is the oxalic acid plunger that is included with the InstaVap vaporizer. It features a 100% stainless steel design with an adjustable plunger to allow between 1-4 grams per application. It features a 0-ring to make the plunger and vaporizer more efficient.
Oiling the O-ring will make use easier and increase its life. No scooping or measuring is required; simply set the plunger dose and press the plunger into oxalic acid to fill it. The additional plunger can be stored in the Instavap handle for easy storage.