No unnecessary fillers

It is also low in sugar

Ideal for use on mineral feeders

or artificial colors and preservatives—ideal for dogs with common food sensitivities

ULTRA Boss Pour-On Fly Insecticide Fly Week No unnecessary fillersULTRA 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