SKU: 57919305140

Merck ULTRA BOSS® Pour-On Insecticide

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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

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Description

Merck ULTRA BOSS® Pour-On InsecticideULTRA BOSS POUR ON INSECTICIDE features broad spectrum control in a pour on. Containing 5% permethrin and 5% piperonyl butoxide, ULTRA BOSS POUR ON INSECTICIDE controls lice, flies and more in lactating and non lactating dairy cattle, beef cattle and calves. About ULTRA BOSS POUR ON INSECTICIDE: Broad spectrum insecticide against lice, horn flies and face flies. Aids in control of horse flies, stable flies, mosquitoes, black flies and ticks. Effective

ULTRA BOSS POUR-ON INSECTICIDE features broad-spectrum control in a pour-on.

Containing 5% permethrin and 5% piperonyl butoxide, ULTRA BOSS POUR-ON INSECTICIDE controls lice, flies and more in lactating and non-lactating dairy cattle, beef cattle and calves.

About ULTRA BOSS POUR-ON INSECTICIDE:

  • Broad-spectrum insecticide against lice, horn flies and face flies. Aids in control of horse flies, stable flies, mosquitoes, black flies and ticks.
  • Effective horn fly control for 8 weeks.1
  • Season-long lice control with one application (January through April).1
  • Fast-acting permethrin formulation with 5% piperonyl butoxide optimizes control.1
  • ULTRA BOSS POUR-ON INSECTICIDE should be used as part of an integrated pest management system with the use of other pest control practices.

Dosage and Usage:

  • Repeat treatment as needed but not more than once every 2 weeks.
  • Do not allow pesticide to enter or run off into storm drains, drainage ditches, gutters or surface waters.
  • Not for use in outdoor residential misting systems.
  • Available in one U.S. quart (treats 57 550-lb. cattle) or one U.S. gallon (treats 229 550-lb. cattle).
  • For more information, including complete directions and warnings, please see the product label.
Pkg Size UPC # UIN #
Quart 300615260029 065590
Gallon 300615260012 065589
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 57919305140

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Laurie Keeney
Waukegan, US
★★★★★ 5
So worth it!
Size: X-Large
The dogs love them! They chew on them and carry them around inside and outside. They are very durable to the weather and a pit bull! Recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
I
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I don't want my name on the review
Alexandria, US
★★★★★ 5
Dog rings
Size: X-Large
I bought two of these. My dogs love them to death
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
M
Verified Purchase
Melanie S.
Pawtucket, US
★★★★★ 5
Not easy to destroy
Size: X-Large
Our 9 yr old lab can destroy just about any toy except this one. I always keep multiple on hand! Love it.
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Reviewed in the United States on December 29, 2025
B
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Busy Mom
Port Orchard, US
★★★★★ 5
Long-lasting toy.
Size: X-Large
Sometimes this is my two dogs’ favorite chew toy.
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Reviewed in the United States on March 11, 2026
A
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Amazon Customer
Bozeman, US
★★★★★ 5
Like
Size: X-Large
Does what it is supposed to do. We like these for our dog
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 12, 2026

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