Manna Pro Opti-Force Sweat Resistant Fly Horse Spray, 1-gal bottle

Deal
Skip image gallery
Slide 1 of 8

$26.64 First Time Autoship Price
this order
Save 35% (up to $20) today when you set up Autoship. 
$38.94 Autoship Price
(-5%) future orders
  • Keep saving 5% on every order
  • Get deliveries on your schedule
  • Skip, change, or cancel anytime
$40.99 Chewy Price
($40.99 /gl)
Save $46.50 (-53%)
$87.49 List Price
Promo, New Customers Only: Spend $49+, Get $20 eGift Card + Free Shipping with code: WELCOME
In Stock
FREE 1-3 day delivery
Free 365-day returns

No interest if paid in full in 6 months on PayPal purchases of $149+. .

About This Item

Details

  • Sweat-resistant bug spray for your horse.
  • Can be used on horses and ponies of all types.
  • Designed to provide 14-day weather-resistant protection.
  • Choose from multiple sizes to best meet your horse’s needs.
  • Crafted to repel biting flies, gnats, mosquitoes and other insects.

Ingredients

Instructions

Frequently bought together

Questions & Answers

2 Customer Questions

Can it be used on dogs?

Answer by Chewy • May 20, 2024
This spray is formulated for horses and ponies only.

Is this water based or oil based?

Answer by Chewy • Oct 29, 2020
Opti-Force Fly Spray for Horses is water-based.
Reviews
Write a Review
4.5
Rated 4.5 out of 5 stars
37 Ratings
Terms & Conditions

17 Customer Reviews

Rated 1 out of 5 stars
By Mary on Oct 22, 2025

The product had leaked out. About half the bottle leaked out and made a mess.

It was delivered broken open again. It made a liquid mess on my doorstep. Don’t send me another one. You should package this product differently so it doesn’t break

It was delivered broken open again. It made a liquid mess on my doorstep. Don’t send me another one. You should package this product differently so it doesn’t break open and leak out.

Rated 5 out of 5 stars
By Beckie on Aug 17, 2025

Fed Ex failed

Chewy was awesome to replace the smashed bottle of fly spray that the Fed Ex driver dropped and broke all over my porch.

Chewy was awesome to replace the smashed bottle of fly spray that the Fed Ex driver dropped and broke all over my porch.

Rated 1 out of 5 stars
By Maria on May 19, 2025

Bad and dangerous

I sprayed my horse's body mane and forelock with it and overnight it dripped downhorse's mane and forelock into his eyes. Eyes were burning and totally inflamed

I sprayed my horse's body mane and forelock with it and overnight it dripped downhorse's mane and forelock into his eyes. Eyes were burning and totally inflamed. The next day veterinarian came and of course, is an 3 different medications. 3 times a day.

Rated 5 out of 5 stars
By Mark on Aug 19, 2025

The price and effectiveness.

the product is water base and doesn't collect dust. Also, the mist is not irritating or burning.

the product is water base and doesn't collect dust. Also, the mist is not irritating or burning.

Rated 5 out of 5 stars
By Ava on Apr 9, 2025

Works great!

Seems to last even after horse has been rinsed off and I like the foaming action so you can see where it’s been sprayed.

Seems to last even after horse has been rinsed off and I like the foaming action so you can see where it’s been sprayed.

Rated 5 out of 5 stars
By Vada on Aug 17, 2025

Repels fliies with one application

Works all day & isn’t affected sweat

Works all day & isn’t affected sweat

Rated 3 out of 5 stars
By Benita on Jun 3, 2025

Seems to work well with the insects so far.. wish it was a lighter mist.

The fly spray was leaking in the box when I got it. Maybe tape it or?

The fly spray was leaking in the box when I got it. Maybe tape it or?

Rated 5 out of 5 stars
By Heather on Aug 10, 2025

Great product! Comes out little thick but seems to work great!

Great product

Great product

Rated 5 out of 5 stars
By sheila on Jun 15, 2024

First time trying this! Very happy!

This is not an item I have ever seen at the horse and tack stores around me. I thought the price was reasonable, and thought I would give it a try. It is working

This is not an item I have ever seen at the horse and tack stores around me. I thought the price was reasonable, and thought I would give it a try. It is working very well! And I am in hot, humid, buggy weather. It does stay on pretty well when the horses are sweating, but I do reapply it every day. Can’t imagine it would work longer than 24 hours in Florida summer

Rated 5 out of 5 stars
By marie on Nov 12, 2024

THE BEST

THE BEST FLY SPARY I HAVE EVER USED

THE BEST FLY SPARY I HAVE EVER USED