Do you mix it 1 dose at a time? You don't have to mix the whole container do you? How do you store it?

You take the lid off of the lid with the reservoir and squeeze the bottle while it fills the reservoir, then you pour the measured dose directly on the back of the large animal. I use it on my large horses and completely fill the reservoir (30 oz) and start at the withers and pour a straight line across their back to the tale. I store it at room temperature in my tack room at my stables. If you wanted to put it on cattle there are larger quantities to be purchased and placed in a giant sprayer and you can spray the cattle as they go thru the squeeze shoot.

Is it water proof? If I put it on and it rains for a few days, will it still be in affect?

On the bottle, it says not to saddle or wash the horse for six hours after application. So I wouldn't put it on while it was raining, but it should be o.k. if the horse was dry for the first six hours. I personally haven't noticed a decrease in effectiveness after a rain shower, but my horses voluntarily come inside when it rains, so they don't really get soaked.

For those who have used it on horses how long was it effective for flies and ticks. How soon after first application did you have to apply again?

We don't have ticks too bad so I don't know how they work on those. As for flies, it seemed to take a few hours and then my steers were fly free. It lasted about three weeks and then flies were back.

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Merck 2771694 Ultra Boss Pour On

Product ID: 75880306

Details

Brand
Merck
Item Volume
946 ml
Material
cotton
Product Dimensions
5"L x 21.5"W
Sterility Rating
Sterile

⭐4.6/5 star trusted rating

🧴946 ml pour-on volume

🇺🇸Made in USA quality

A$119

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Description

🐴 Elevate your horse’s comfort with trusted, natural care!

STERILE SAFE - Sterility rated for safe, worry-free application on your horse.
COMPACT CONVENIENT - 5" x 21.5" rectangular design for easy handling and storage.
GENEROUS 946 ML SIZE - Ample volume ensures long-lasting use for multiple applications.
TRUSTED BRAND HERITAGE - From Merck, a leader in animal health with proven reliability.
NATURAL COMPLEMENTARY CARE - Supports horse health alongside veterinary medicine for holistic wellness.

Merck 2771694 Ultra Boss Pour On is a sterile, 946 ml topical solution made in the USA, designed to complement veterinary medicine by promoting horse health and comfort. With a strong 4.6-star rating from over 550 reviews, it offers a reliable, natural approach to equine wellness in a convenient, easy-to-use format.

Specifications

ASIN	B078YKPV9Z
Best Sellers Rank	#35,994 in Pet Supplies ( See Top 100 in Pet Supplies ) #394 in Horse Health Supplies
Brand	Merck
Brand Name	Merck
Customer Reviews	4.6 out of 5 stars 558 Reviews
Global Trade Identification Number	00300615260029
Included Components	As shown.
Item Dimensions L x W	5"L x 21.5"W
Item Shape	Rectangular
Item Type Name	Merck 2771694 Ultra Boss Pour On
Item Volume	946 ml
Item Weight	2 pounds
Manufacturer	Steve Regan
Material	cotton
Model Number	2771694
Part Number	2771694
Product Dimensions	5"L x 21.5"W
Set Name	COLOR_NAME
Sterile	Sterile
Sterility Rating	Sterile
UPC	300615260029
Unit Count	1 Count

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TrustScore 4.5 | 7,300+ reviews

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I loved the variety of products available. Will definitely shop again.

2 months ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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A$119

Duties & taxes included

In stock

Sold byAmazon AustraliaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Australia.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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