Kills repels and protects! Farnam Tri-Tec 14 Fly Repellent is a water-based horse fly spray formula that means business. Protect your horse against six types of biting and nuisance flies plus gnats mosquitoes lice and deer ticks. Tri-Tec 14 horse fly spray delivers quick knockdown and long-lasting protection. Keeps working for up to 14 days. Read the label for application directions to get the most out of this hard-working fly spray for horses. Tri-Tec 14 contains multiple active ingredients including Cypermethrin Pyrethrins Piperonyl Butoxide Technical and Butoxypolypropylene Glycol. It is available in a 32-ounce ready-to-use trigger spray bottle 128 ounces economical Easy Pour spout gallon refill and a 15-ounce non-aerosol 360-degree continuous spray can for complete coverage from every angle that you choose to spray. Farnam Tri-Tec 14 Fly Repellent is a powerful weapon and your best defense in the war on biting and nuisance insect pests. Flies are an inevitable fact of horse ownership but your horse doesn t have to be stomping and swishing his tail non-stop during the fly season when you use Tri-Tec 14 Fly Repellent. Bugs don t fly with Farnam your partner in horse care.