Farnam Repel-Xp Emulsifiable Fly Spray

Regularly: $168.42
Today's savings: 37 %

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In Stock. Usually Ships within 24 hours.



In Stock. Usually Ships within 24 hours.



In Stock. Usually Ships within 24 hours.

Shipping weight = 9.00 lbs.


Product Summary:

Farnam™ Repel-X®pe Emulsifiable Fly Spray

Farnam™ Repel-X®pe Emulsifiable Fly Spray kills on contact and provides economical protection from biting and bloodsucking flies, gnats and mosquitoes. It also repels horn flies, house flies, stable flies, and horse and deer flies.


  • The horseman's choice for more than 30 years
  • Diluted 1:7 with water, provides economical protection from house flies, horn flies, gnats, and mosquitoes
  • Mixed at 1:4 dilution, kills ticks, horse flies, deer flies, and stable flies
  • Single application keeps flies, gnats, ticks, and mosquitoes off horse for days
  • Superior fly control that's easy on the budget
Item Specifications:

Active Ingredients:
Prallethrin 0.27%, Piperonyl Butoxide 1.00%.

Directions for Use:
It is a violation of Federal law to use this Product in a manner inconsistent with its labeling. For use only on horses and ponies. Shake well before using.

Mix Repel-Xpe Emulsifiable Fly Spray with water at proper dilution. First put the required amount into sprayer or mixing container. Then add water according to directions and mix thoroughly before using.

Important: Mix fresh solution before each use. Apply with pressure sprayer or you can sponge it on horses. Make sure animal's coat is thoroughly wet. Use approximately 8 oz. for each animal depending on size of horse or pony. Avoid getting solution into the animal's eyes.

Horses: To protect horses from horn flies, house flies, gnats and mosquitoes apply at a 1:7 dilution. Each pint of concentrate makes a gallon of finished spray. Repeat application every 3 to 4 days, or as often as needed. Where horse flies, deer flies (tabanids), stable flies, ticks, or deer ticks, which may transmit Lyme Disease, are a problem, apply a 1:4 dilution and repeat as often as needed.

Cannot ship air, must ship ground.

Downloadable Resources
Product Label FrontManufacturer Information
Product Label BackManufacturer Information
MSDS SheetManufacturer Information
Style Item Number Model Number UPC
32oz SLT100010 032 100512028 086621023307
Gallon SLT100010 401 100512027 086621023291
Pint SLT100010 PT 100502321 086621023215

Product Reviews by Customers

4.5 / 5.0
68 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
A great fly spray!
I have been using Repel-X for years. It is very economical and works. It's the only fly spray i use.
September 11, 2018
1 month ago
Repel X Fly Spray
Excellent "Go To" fly repellant. I always have this product on hand. I like to rotate my fly sprays. Lasts a long time because it is a concentrate.
September 3, 2018
1 year ago
Really seems to give relief.
Have used for years and it seems to help my 24 yr old mares joints.
August 11, 2018
over 3 years ago
Worth every penny
I am so glad to be able to afford this again. Flies have been the worst they have ever been and after trying several cheaper sprays I am back to RepelX. The only thing that gives my 27 yr old Louie relief.
August 1, 2018
2 months ago
Lynn's Repel-X Fly Spray Review
Works as well as other fly sprays. Ability to order large sizes is economical when you have multiple horses.
July 27, 2018
2 months ago
Repel-Xp is a reliable fly repellent
I've used Repel-Xp for decades. It does a better job of keeping flies off the horses than just about any other fly spray I've used, that's why I've used it for so long. However I am now trying other fly spray repellents because the price of Repel-Xp has gone up outrageously and has been unstable for the past several years, from about $89 a gallon last year to $125 a gallon this year. I wrote to Farnam to ask about the wild price fluctuations and they were quite curt and blew me off saying the retailers set the prices. I think that's untruthful because every retailer I checked had a big price increase this year at both online and brick-and-mortar stores. That tells me the price increase is coming from the manufacturer not the retailer. I'm looking for something that is more reasonably priced.
July 13, 2018
over 3 years ago
Custom Fly Spray
Make it at a 7 to 1 ratio of water to Repel-X, or cut the water in half for greater fly control on your horse.
June 17, 2018
1 year ago
Been buying this for years ... never found anything better or more economical.
June 1, 2018
4 months ago
nothing else works like this
When the flies are bad, this is what we use. I haven't found anything else that works on flies like Repel-X
April 6, 2018
1 year ago
This probably works just as well as any fly spray. I'm not sure any of it truly works, especially for the number of days it says it should. I add in skin-so-soft when I mix mine. It adds a little extra oil and is suppose to repel bugs also.
October 25, 2017
1 year ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 6 questions Browse 6 questions and 70 answers
Why did you choose this?
Statelinetack.com Store
Have used this product for years now.... would not use any other fly spray
Betsy D on Sep 19, 2018
This product really works! We have used it for years.
Lonny B on Aug 21, 2018
Have used this product for years now.... would not use any other fly spray
Betsy D on Sep 19, 2018
This is the best fly spray I ever used for it has an oil base which makes it last longer
Ann J on Sep 12, 2018
This product really works! We have used it for years.
Lonny B on Aug 21, 2018
This stuff works great.
Lori H on Aug 20, 2018
Mix my own is less pricey.
Barbara J on Aug 12, 2018
best value and long lasting. used for many years.
LESLIE S on Aug 7, 2018
brand and price
sarah g on Jul 16, 2018
Currently using
Steve W on Jun 27, 2018
We have been using another fly spray, I decided to give this one a shot since I won't be paying for water.
Jacquelyn S on Jun 26, 2018
Used for YEARS and LOVE this product!
Leslie R on Jun 26, 2018
Very effective
Mary Anne C on Jun 23, 2018
It works well.
Barb G on Jun 13, 2018
I have a filly that is hyper sensitive to flys and a friend recommended this
Beth A on Jun 11, 2018
best fly spray on the market
Jessica C on Jun 9, 2018
Always use this fly spray. Economical.
Irene V on Jun 6, 2018
Cheaper price than in the store
Cassie S on May 23, 2018
Been using it for 30 years. keeps the ticks away
Renee M on May 17, 2018
Probably the best fly spray on the market.
Gail H on May 7, 2018
Like the ability to mix a more concentrated formula.
Angela S on Apr 29, 2018
It is the only product that I can tolerate the smell and it seems to work ok
Janet B on Apr 18, 2018
This is handy for daily use.
BELINDA W on Apr 17, 2018
it works
Lorraine R on Apr 1, 2018
Have been using this for years. Works great...can mix your own strength for seasonal fly control!
Susan L on Mar 11, 2018
Works great and fly season is just around the corner
Laura C on Mar 9, 2018
Old tried and true product--have used for years....and fly season is coming....
Karen K on Mar 7, 2018
Hot humid summers, best product I've found because of water base to repel flies, horse flies and gnats and won't burn skin like oil base can. Recommended by Vet.
Terri M on Mar 2, 2018
Another great product from Farnum that I have been using for year. Good value.
Kevin M on Feb 23, 2018
Suzanne A on Feb 9, 2018
works well
Rachael B on Jul 12, 2017
Have been using this product for a long time and then I saw the gal. size and at discount price,the savings compared to buying local made me immediately place this order.Thanks for making this decision easy with the good discount.
Russell A on Jul 6, 2017
best I've found for price
Joan V on Jul 3, 2017
for the price and effectiveness I feel best fly repellent on market
Sandra H on Jun 5, 2017
cant beat this product for repellent
brian l on Jun 1, 2017
Pat K on May 31, 2017
Repel-X is always my go to fly spray for around the barn and trail riding.
Connie S on May 25, 2017
works works works not like the other brands a little goes a long way
Judy D on May 23, 2017
Great product works better then most fly repellents.
Jessie S on May 18, 2017
Fly protection. Love the smell :)
Linda L on Dec 7, 2016
It works better than any other fly repellent I've ever used. Because it's concentrated, it lasts me quite a while and I have found that it is more effective in repelling flies for a longer period of time.
Ann W on Sep 25, 2016
I have used many different brands of flyspray through the years, this one works the best, lasts the longest on my horses
Katrina P on Sep 5, 2016
a good fly spray of the emulsifiable type. I add Avon SkinsoSoft and vinegar and voila!
liz t on Aug 29, 2016
its the best product on the market
INGRID M on Aug 16, 2016
I put this in a spray bottle and use it on horses that are a little sensitive to wipe.
Dorothy K on Jul 29, 2016
Economical and it works
Terri M on Jul 19, 2016
This is the only product I've found that puts a knock down on the flies.
Karla T on Jul 9, 2016
Used it before. Effective product at a good price.
Kathleen B on Jul 8, 2016
It works immediately on any flying equine external parasite. Kills flies immediately on contact :)
Terri M on Jun 20, 2016
I have used this product for many years and find it the most effective at a reasonable cost with the least likely to cause side effects. State Line always has the best prices on my stables supplies of anyone around.
CAROL D on Jun 17, 2016
For Flies.
CHERYL G on Jun 14, 2016
I like being able to vary the concentration for the conditions we'll be encountering.
Cornelia H on Jun 14, 2016
This is the best fly spray I ever used for it has an oil base which makes it last longer
Ann J on Sep 12, 2018
This stuff works great.
Lori H on Aug 20, 2018
what size bottle is concentrated?
A shopper on Jun 2, 2015
BEST ANSWER: All of them are concentrated. I bought the gallon size for the reduction in price for volume purchase.
can the mixed product be stored or does it need to be used right after mixing it?
A shopper on Jun 29, 2016
BEST ANSWER: No. Just shake and use it...no matter how long since you mixed it. I have to say I have 8 horses so I use it up within a couple of days but I'd not hesitate to keep it in a mixed solution for a few weeks.
Is the gallon of Repel X a concentrate?
A shopper on Dec 30, 2015
BEST ANSWER: Yes it is a concentrate. It is necessary to mix with water in the proper ratio before use.
How much would the 32oz make??
A shopper on Apr 29, 2016
BEST ANSWER: It all depends on how concentrated you make it and how often you use it. For me, it lasts a long time and I dilute it different almost every time. The bottle states:

Diluted 1:7 with water, Repel-Xpe provides economical protection from house flies, horn flies, gnats and mosquitoes.

Mixed at 1:4 dilution, kills ticks, horse flies, deer flies and stable flies.
expiration date?
A shopper on Apr 4, 2015
BEST ANSWER: I don't know if there's a printed expiration date, but I lonely use fly spray in the summer and early fall. Any of the concentrate I don't use during that time gets stored in the feed room until the next year. I've never had a problem with it going bad, become less potent, etc.