ULTRA Boss Pour-On Fly Insecticide Clearance a plastic ampule and a

a plastic ampule and a block heater (sold separately) to provide a dry heat environment for the incubation of the ampules

Large - fits neck up to 26"

Feed to calf by bottle or esophageal tube feeder

Comes in a pair

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ULTRA Boss Pour-On Fly Insecticide Clearance a plastic ampule and aULTRA Boss Pour On Insecticide ULTRA Boss Pour On Insecticide is a ready to use, synergized solution containing 5% permethrin and 5% piperonyl butoxide. It provides broad spectrum control of external parasites such as lice, horn flies, face flies, stable flies, horse flies, mosquitoes, ticks, and black flies. Approved for use on beef cattle, dairy cattle (lactating and non lactating), calves, sheep, goats (including lactating dairy goats), and horses