Sweat and water resistant, Opti-Force Fly Repellant provides up to 14 days of protection against insects for your horse, even in hot, humid conditions where other sprays may drip off. Opti-Force is effective against flies, gnats and mosquitoes that can carry West Nile Virus. Effective, long-lasting and economical, Opti-Force is made by Manna Pro, a name we know and trust.

• 32 oz ready to use spray.

• Made by Manna Pro.

• Lasts up to 14 days.

Active Ingredients in Opti-Force:

• Cypermethrin,CAS #52315-07-8 - 1%

• Other Ingredients - 99%

Fast shipping on sweat resistant Opti-Force Fly Spray for horses from Manna Pro from www.marystack.com.