Opti-Force® Horse Fly Mask Pond & Fountain Maintenance Supplies Keeps water from freezing down

Keeps water from freezing down to 0 f

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Opti-Force® Horse Fly Mask Pond & Fountain Maintenance Supplies Keeps water from freezing downEquine Insect Control Fly Mask This product provides built in, invisible and odorless insect protection. Designed for the comfort of the horse, the mask repels mosquitoes, ticks, flies, and fleas and can fit horses weighing between 9001,200 lbs. Repels mosquitoes, ticks, flies, and fleas (including insects that cause Lyme disease and West Nile virus) Comfortable design keeps the mask off the face and away from the eyes Fits horses weighing between