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: 353461488

Details

Brand
MERCK Animal
Item volume
946
Material
Plastic
Product dimensions
12.7L x 54.6W
Sterility rating
Sterile

🌿Natural & complementary formula

🧴Generous 946 ml pour-on volume

🇺🇸Proudly made in the USA

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Description

🌿 Elevate your horse care game with nature’s trusted ally!

STERILE SAFE - Sterile formulation guarantees safety and peace of mind for your valued animals.
MADE IN THE USA - Crafted with precision and quality assurance on home soil for trusted reliability.
NATURE BACKED WELLNESS - Harnesses natural ingredients to support your horse’s health alongside veterinary care.
GENEROUS APPLICATION SIZE - A full quart (946 ml) bottle ensures long-lasting use for multiple treatments.
LIGHTWEIGHT EASY TO USE - At just 2 pounds, it’s portable and simple to apply, perfect for busy equine managers.

Merck 2771694 Ultra Boss Pour On is a sterile, natural formula designed to complement veterinary medicine, promoting horse comfort and health. Proudly made in the USA, this 946 ml lightweight pour-on solution offers a reliable, easy-to-use option for proactive equine wellness.

Specifications

ASIN	B078YKPV9Z
Brand	MERCK Animal Health
Brand Name	MERCK Animal Health
Global Trade Identification Number	00300615260029
Item Dimensions L x W	12.7L x 54.6W centimeters
Item Type Name	Merck 2771694 Ultra Boss Pour On
Item Volume	946 Milliliters
Item Weight	907 g
Item volume	946 Milliliters
Manufacturer	Steve Regan
Material	Plastic
Model Number	2771694
Number of Items	1
Part Number	2771694
Product dimensions	12.7L x 54.6W centimeters
Sterile	Sterile
Sterility rating	Sterile
UPC	300615260029

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B/.268

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In stock

Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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

Secure transaction

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