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Formula 707 MultiFly Feed-Thru Fly Control Pellets for Horses - Palatable & Safe Fly Population Reduction (10 lb Bag - 182 Servings)

  • Based on 1,210 reviews
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Availability: In Stock.
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Arrives Monday, Jul 20
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Size: 10 lb Bag


Features

  • EFFECTIVE - Contains active ingredient Novaluron, which is an Insect Growth Regulator. This new generation technology is 99.9% effective at breaking the fly life cycle to help eliminate the fly population in your barn.
  • SAFE - Unlike other brands, our active ingredient is not an organophosphate, and is completely safe for horses.
  • PALATABLE - Administer one serving of our alfalfa and wheat midd-based pellets to your horses daily with their feed.
  • AFFORDABLE - MultiFly is just as effective as other brands, at a lower daily cost to you.
  • MADE IN THE USA - All of our products are manufactured in our facility in Colorado, since 1946.

Brand: Formula 707


Item Form: Pellet


Scent: Unscented


Item Weight: 10 Pounds


Active Ingredients: Novaluron


Item Volume: 1.2 Gallons


Unit Count: 1.0 Count


Age Range (Description): All Life Stages


UPC:


Product Dimensions ‏ : ‎ 8 x 9.66 x 9.88 inches; 10 Pounds


Item model number ‏ : ‎ 60310_FBA


Date First Available ‏ : ‎ June 17, 2021


Manufacturer ‏ : ‎ John Ewing Company- Pets


Best Sellers Rank: #2,115 in Pet Supplies (See Top 100 in Pet Supplies) #2 in Horse Fly Repellents


#2 in Horse Fly Repellents:


Customer Reviews: 4.6 4.6 out of 5 stars (1,331)


Brand Name: Formula 707


Age Range Description: All Life Stages


UPC: 765616603105


Manufacturer Part Number: 60310_FBA


Model Number: 60310_FBA


Unit Count: 1.0 Count


Included Components: As shown.


Manufacturer: John Ewing Company- Pets


Item Form: Pellet


Scent Name: Unscented


Target Species: Horse


Item Weight: 10 Pounds


Volume: 1.2 Gallons


Active Ingredients: Novaluron


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jul 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • It Works! I’ve Used it Two Years in a Row. It Works! I’ve Used it Two Years in a Row.
Size: 5 lb Bag
I’ve waited to write a review for this product until the weather was consistently warm (and flies were likely to go after my horses.) We began using this in February and it has worked incredibly well. It is now mid-June and we have some flies in the barn, but they are about 90 percent less than last year and they tend to congregate around the muck buckets instead of the horses. I have tried so many fly treatments (i.e. fly spray, fly masks, fly boots, permethrin, etc.). This product works. The key is to put the supplement in the feed about a month before flies will appear. If you wait until you’re under attack by flies, it won’t be as effective (we also used it at the end of last summer and the result wasn’t as good as being proactive / starting early. It still helped but this year has been much better. My horses still wear fly boots, but we only put fly masks on when they are outside and the flies are going to find them anyway. The flies in the horse barn were intolerable last year and that’s not the case at all this year. The horses get a few flies but nothing major. The product is outstanding. I highly recommend this product. It has helped reduce our fly population so nicely and the price isn’t crazy. You honestly save money by purchasing this instead of using five other fly repellents to get to a lesser result. My two horses love the flavor and have no issues with this supplement. Thank you for solving our fly nightmare. :) ... show more
Reviewed in the United States on June 18, 2025 Reviewed in the United States on June 18, 2025 by Hazel

  • Feed through fly repellent
Size: 10 lb Bag
This product definitely works!
Reviewed in the United States on May 19, 2026 by Bridgett W

  • Important player in fly control
Size: 5 lb Bag
I was nervous to do a feed through pellet with my horse but the flies get out of control so I decided to go for it. I’ve been using this product for about 5 months now because it’s important for feed through pellets to have time to build up in the system in order to be effective. The lack of flies in my barn is so noticeable that my farrier asked what I was doing for flies and he noticed I have considerably less than any barn he goes to. I am pleased with the effectiveness of these pellets and there’s been no ill effects on either of my horses. Definitely worth the value. The best way to combat flies is a multifaceted approach: - Feed through pellets starting in early spring before the bugs start waking up. Just one scoop daily. Super easy. -Equi-spot every 2 weeks -Fly spray -Daily poop cleaning in the areas near or in barns I live in buggy TN and this combination works wonders. ... show more
Reviewed in the United States on August 6, 2025 by Jessi K.

  • Product works!
Size: 10 lb Bag
The best feed through fly control for my small barn of6 horses. We all start on March 1 and continue through Oct 30. I have tried 2 others that did not work as well. We are all very happy with this product. Been using it for 3 years this will be the 4th year
Reviewed in the United States on March 4, 2026 by Tanya Anderson Scott

  • Unbelievable results
Size: 5 lb Bag
To say I was sceptical is an understatement, I was desperate for a solution to the flies in the stall and barn area. Using fly spray with chemicals on my horse wasn't what I wanted to o tried natural spay... I was out there 3 or more times a day. My horse has a fly sheet and fly mask and he was still miserable. It was an unreasonable monsoon summer here in New Mexico. I did some research and found this product to be highly regarded be horse owners with great results. My horse had no problem eating the grain formula. He's food driven! Within 2 days I noticed I wasn't fighting as many flies when I went out to feed and water and clean the stall. Within 5 days it was very noticeable that the flies were significantly less. Mostly in the manure I needed to pick up. My horse is happier, not having to fight the flies to get to his grain bucket! It's worth the money and... It works fast! ... show more
Reviewed in the United States on August 13, 2024 by KAJR

  • Reliable product
Size: 5 lb Bag
Excellent product!
Reviewed in the United States on May 20, 2026 by Christine Kline

  • ⭐️⭐️⭐️⭐️⭐️ No More Flies. Period.
Size: 5 lb Bag
I honestly didn’t expect this to work as well as it has, but wow—707 MultiFly completely delivered. After just a couple of weeks, I noticed a huge difference. The most impressive part? There are literally no flies anywhere. None. I’ve tried so many sprays and traps over the years, and nothing has worked this effectively. It’s simple to use and doesn’t involve coating your horse in chemicals or dealing with messy applications. Just a daily scoop, and you’re done. I love that it works from the inside out—targeting the problem at the source, not just temporarily pushing flies away. If you’re tired of the constant fly battle every summer, this is absolutely worth trying. I won’t go without it now. ... show more
Reviewed in the United States on July 15, 2025 by Jen

  • Fly control
Size: 10 lb Bag
It reduces the flies but I think it is impossible to get rid of them. We used it for two years and will continue to do so. We are also surrounded by cattle.
Reviewed in the United States on April 9, 2026 by William Schleizer

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