Control Varroa Mites with Oxalic Acid Vaporizer

To help U.S. beekeepers take full advantage of the benefits of Oxalic Acid, known and experienced by Canadian and European beekeepers the MK 350 Terminator was developed.

Built in the USA using high quality engineered plastics, aluminum, and solid state electronics, the MK 350 Terminator was designed to withstand years of abuse while effectively controlling and terminating any varroa mites present in your hives. After its initial warm up cycle of 2 to 3 minutes (depending on the ambient temp) the MK 350 can treat subsequent hives in less than 30 seconds. In order to provide for a high degree of operator safety all major electrical components and connections are housed inside the MK 350’s sealed plastic housing to prevent inadvertent electrical shock or component damage from exposure to water.

Unlike overpriced imports or homemade units the MK 350 Terminator comes with a one year parts and labor warranty and is a 110 volt AC, 2.3 amp device.

Regularly priced at $265.00, for a limited time the MK 350 has been reduced to $195.00 during our Prep for Spring Sale.

For those in need of special financing we offer an interest free layaway program that requires no credit check! For complete details please visit our web site.

To order or learn more visit us at:

Ships throughout the United States and Canada

Honey Bee Care

Suffolk, VA 23434


To view a short video of the MK 350 operating please click on the following link.

MK 350_5

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110v AC??
How does that get powered?

The unit is 110 v AC

What is the optimal temperature setting for a MK350 or Provap 110?

On your website it suggests 230° (I am assuming Celsius) but isn’t that well over the decomposition temperature? I do understand that the heat of evaporation will cool the container but why set it so high if the device is actively heated anyway?

157-189°C (315-372°F) is what I can find for optimal vaporization temperature.

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I just watched one of the videos @FrederickDunn has up and he also set for 230ºC. Any commentary?