Opti-Force Fly Mask

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Opti-Force Fly Masks provide protection against stinging and biting flies, mosquitoes, ticks, and fleas. In addition to preventing irritation and pain, Opti-Force Fly Masks reduce the risk of disease by keeping insects away from your horse's delicate eyes. Designed for comfort, the mask stays off of the face and away from the eyes. Comes with invisible insect deterrent properties and clear vision mesh.


The Opti-Force Fly Mark made by Manna Pro is a light-weight, breathable fly mask that keeps insects away from your horse’s sensitive eyes. Designed to fit horses between nine hundred and twelve hundred pounds. Also available in extra-large.

  • Designed for comfort - mesh stays off the eyes and face
  • Provides a clear view
  • Inherent, odorless, insect-repellent properties


FarmVet Tip: 
Opti-Force Fly Masks use the same Insect ShieldⓇ technology that has been proven to repel mosquitoes, ticks, ants, midges, flies, and chiggers when used in human clothing.


Do not dry clean. This product has been treated with permethrin and dry cleaning will remove the permethrin. Make sure to consistently check the fit of the mask to your horse.  You should be able to comfortable slip your finger between the mask and your horse. The mask should not be so close to your horse's eyes that it touches his eyelashes. 

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