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Opti-Force Sweat Resistant Fly Spray
Manna Pro (#27463)

Opti-Force® Sweat Resistant Fly Spray

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The few add-on items we have can be shipped free by syncing them with your supplement on AutoShip, shipping on a Barn Saver Shipping day, or by having a group of add-on items that total over $75. Have questions? Visit SmartPak.com/SmartPerks or call 1-800-461-8898 anytime.

*At least one individual AutoShip supplement or horse’s SmartPaks must be over $40. Some exclusions apply.

Ride Along Item Ships free with a qualifying item. Details

Save 10% Every Day!

Put your horse’s supplements on AutoShip to SAVE 10% every day on all SmartPak brand tack, apparel & gear.

Ride Along Item(s):

The few add-on items we have can be shipped free by syncing them with your supplement on AutoShip, shipping on a Barn Saver Shipping day, or by having a group of add-on items that total over $75. Have questions? Visit SmartPak.com/SmartPerks or call 1-800-461-8898 anytime.

*At least one individual AutoShip supplement or horse’s SmartPaks must be over $40. Some exclusions apply.

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As riders and online shoppers, we know it can be tough to buy a new bridle or pair of boots without trying them on. That's why we moved the fitting room to your living room (or barn)! From breeches to blankets, if you or your horse can try it on, you can return it, free! Just request a return with a FREE SmartPak return label from your Order History within 45 days of the purchase date. Please ensure the item you're returning is in like-new condition with original packaging. For full details on our returns policy, please visit SmartPak.com/Returns.

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PLUS! You'll save % on every shipment if you order this product on AutoShip
You'll love our AutoShip because it's:
  • Focused on healthy s, because consistency is key
  • Easy to snooze or cancel online, anytime
  • Totally flexible - edit your order as often as you'd like
  • Your VIP pass to FREE SmartPerks benefits
PLUS! You'll save % on every shipment if you order this product on AutoShip
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Start date: Customize your program for estimated start date. View estimated schedule
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Zone Map
Begin with the zone for the state you are in. Dates shown on the map indicate suggested start and end dates for Fly Stoppers™ shipments. You may want to shift a zone if your elevation or microclimate is unusual, or if you fall on the border between two zones. You can start anytime during the fly season. Choose "Year Round" for climates that have flies all year, and start now.
Program Type Shipment/Application Frequency
Regular Programs: Ships every 4 weeks. For low to average fly levels, frequent manure management and few neighbors.
Premium Programs: Ships every 3 weeks. For high fly levels or weekly manure management or nearby livestock.
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Before purchasing this item, please note:

  1. This item can't be shipped to a PO Box.
  2. This product will be shipped directly from the manufacturer using a shipping company.
  3. The freight company will call you to schedule a delivery appointment.
  4. If SmartPak and the shipper are unable to contact you within 7 business days of the product shipping out, your order will be cancelled.
  5. You may be liable for any storage fees due to missed delivery appointments or requests for dates beyond the standard delivery window.
  6. When your shipment arrives, you will be responsible for inspecting the shipment to make sure it's complete and that no items are damaged.
  7. Before accepting the shipment and signing for it, you must record missing items and damaged items on the receipt, and take pictures of any damage.
  8. SmartPak and the manufacturer will not be able to assist you in filing a claim if you haven't noted any damage on the receipt. You will be responsible for filing any claims.

Shipping is not available to Alaska or Hawaii for this item. We apologize for any inconvenience.
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All customized items are personalized in our Plymouth, MA facility, and it looks like this item is currently out of stock in that location.
Please call 1-800-461-8898 to order this product.
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We're sorry this item is currently out of stock. Our team is working to get it back in stock asap.

SmartPerks Putting your horse's supplements on AutoShip helps you take great care of your horse, so we take great care of you with SmartPerks! When you order your horse's supplements on AutoShip, you're automatically* eligible for our FREE SmartPerks benefits, including:

  • Free shipping every day
  • 10% off all SmartPak brand tack, apparel, and gear

Learn more about SmartPerks

*At least one individual AutoShip supplement or horse's SmartPaks must be over $40. Some exclusions apply. Visit SmartPak.com/SmartPerks or call 1-800-461-8898 for details.

Overview

Why We Love This

Opti-Force® Fly Spray from Manna Pro® is a sweat and weather resistant repellent that will help keep biting and nuisance flies at bay all summer long. Because this spray is water resistant it is the perfect choice for horses who are turned out and those who are in hard work. This fly spray repels and provides quick knockdown for a wide variety of bug species including mosquitoes and gnats. Up to 14 days of bug protection means you will apply less often making Opti-Force® Fly Spray an effective and economical choice for your bug battle.
Favorite Features
  • Sweat resistant Fly Spray
  • Provides repellency and quick knockdown from biting and nuisance flies, gnats and mosquitoes (Culex spp.) that may transmit West Nile Virus
  • 14-Day, weather-resistant protection
  • Ready-to-use
  • STILL HAVE QUESTIONS? SEE Q&A
  • 100% Happiness Guarantee
    100% Happiness Guarantee
    At SmartPak, your happiness is at the core of everything we do. We put our products to the test in our barns and on our horses, and back every order with our world-class customer service so that you can shop with confidence. As part of our Happiness Guarantee, we promise you:
    • Expert advice from riders
    • Free shipping every day
    • Free return shipping on sized items within 45 days of purchase
    • Hassle-free returns up to 60 days from purchase
  • PLEASE READ: Delivery Guidelines
Ingredients
(Maintenance Dose = )
Ingredient Amount
Instructions
Instructions for Use:
DIRECTIONS FOR USE:
Shake well before using. Avoid contact with eyes or mucous membranes. Harmful if swallowed. Avoid contamination of food.
To protect horses and ponies from Horse Flies, House Flies, Stable Flies, Face Flies, Horn Flies, Deer Flies, Gnats, Mosquitoes (Culex spp.): Thoroughly brush the horse’s coat prior to application to remove loose dirt and debris. For dirty horses, shampoo and rinse thoroughly. Wait until the coat is completely dry before applying this product. Opti-Force™ is sweat-and weather-resistant, so it keeps working when the horse sweats, and after rainfall.

Spray or Wipe Application:
Application should be liberal for best results. For horse’s face, always apply as a wipe using a piece of clean, absorbent cloth, toweling (Turkish) or sponge. Avoid getting spray into horse’s eyes, nose or mouth.Wear rubber glove or mitt when applying as a wipe. Spray or wipe horse’s entire body while brushing against the lay of the coat to insure adequate coverage.
Reapply every 14 days for fly control normal conditions for initial applications. As protection builds, reapply every 14-17 days. Reapply every 5 to 7 days for mosquito repellency. Also, reapply each time animal is washed thoroughly, particularly if with shampoo or soap.
Sizing
Available in a 32 oz spray and refill Gallon.
What Customers Say:
Reviews
Opti-Force® Sweat Resistant Fly Spray is rated 2.9 out of 5 by 16.
Rated 5 out of 5 by from Probably the best spray yet! After hearing the stories of others fighting flies, I searched for something that would last longer than a couple of days and was sweat/weather resistant. I started using Opti Force at the beginning of the fly season before the flies became unbearable. All of my horses are on pasture so I needed something that would last. I tried Opti Force and instantly noticed a huge difference! I reapply it every 10-12 days for it to be the most effective. This spray has saved my horses from stomping so much! Is it 100%? No. But there is a noticeable difference compared to when there was nothing and when it's time to reapply. My farrier is always impressed when he comes out as my horses have very few biting flies on them at any given time. They still get horse flies, but not swarms. They still get biting flies, but very few. It's not 100% perfect, but this spray has made a huge difference for the comfort of my horses.
Date published: 2024-09-03
Rated 1 out of 5 by from DO NOT USE THIS PRODUCT I purchased Opti-Force fly spray on Monday 6/3 and sprayed my horse. On Tuesday 6/4 both of my horses eyes were running and swollen shut. One eye has now opened but this product has definitely damaged his eye site. He is still very agitated as it has irritated his body also. Sure he didn't have any fly's on him but at a huge expense!!! Do No Use This Product!
Date published: 2024-06-06
Rated 1 out of 5 by from After using this my horse went blind I never bought before. I sprayed him down but not his head. The next am both eyes were swollen shut and he was blind. After doing what I could to help reduce the swelling I called they vet. Tomorrow he's going to see the vet which I feel .Anna Pro should pay for. Never again will I buy this product. It has to be the fly spray because I didn't do anything different.
Date published: 2023-08-13
Rated 1 out of 5 by from Doesn't work I would NOT recommend this crap. Ibought this opti force sweat resistant fly spray. Flys still attacked my horse. Sprayed some on a rag and whipped my horses face. The horses eyes swelled shut the next day. Some over spray got on me from the wind . My skin burned for over 24 hours. I would say this product is harmful to your health but not harmful to flys
Date published: 2023-07-22
Rated 1 out of 5 by from Difficult to spray and useless at repelling flies For some reason, this sprayer on the bottle is very difficult to use. There is a stream setting and a spray setting. On the spray setting, the product does not come out in a good spray - but a small spray. So I have to pump and pump and pump to get probably what would be on 1 pump of another product. My hand hurts from having to pump that bottle so much to get enough product on my horse. On the stream setting, it is just one stream, so that was useless. After working very hard to get the product on my horse, I noticed the flies landing on her legs in the exact same spot I put this product one minute ago. Ridiculous.
Date published: 2022-06-19
Rated 1 out of 5 by from Do not recommend I usually use endure which has worked great, I bought this because by reading the bottle it looked to be a better product, unfortunately it's not. I sprayed my horses several days in a row and they were still getting covered in flies, didn't work at all and this product isn't cheap. I tried to message the company directly but kept getting an error so I decided to leave a review, I don't recommend this fly spray at all
Date published: 2022-06-08
Rated 5 out of 5 by from I love the fact that this stays on the horses for! I bought this a while back and was dubious about the 14 days. It does last several days, what a delight when you go out to the pasture and they aren’t covered with bugs. But when it rains you definitely need to reapply.
Date published: 2022-05-15
Rated 1 out of 5 by from Not happy I have used both opti and pro force fly sprays both cans after one use clogged and would not spray it formed into a jell like substance tossed both in the trash I use a lot of Manna pro product and never had any problems only your fly spray
Date published: 2021-10-07
Rated 1 out of 5 by from Fly spray I was not happy with this fly spray said it was sweat resistant and it did not work I found myself falling back to a cheaper fly spray that worked better not happy with this won’t purchase again
Date published: 2021-06-24
Rated 5 out of 5 by from Great product! I use the fly spay on my highland cattle. It lasts through weather for the entire 14 days. The long stream is great for backs to feet.
Date published: 2021-06-05
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