Precor 2000® Plus Premise Spray is a premise spray that packs a fast adulticide punch with two adulticides, Phenothrin and Permethrin, along with the lasting effects of Precor IGR. - Covers 2,000 square feet. - Fine mist, low odor formula that dries without leaving a residue. - Water-based for better coverage. - Heavier-than-air molecules go deep into the base of carpets and upholstery to control flea larvae. - The best way to rid households of fleas and reduce callbacks. Precor 2000 Plus Premise Spray contains Permethrin and Phenothrin to kill adult fleas fast. It also contains Precor IGR to prevent reinfestation for up to seven months. Precor IGR penetrates deep into the base of carpet and upholstery fibers, where pre-adult fleas live. Precor IGR targets fleas in the egg and larval stages of development, preventing them from producing new infestations of breeding, biting adults. Ultimately, that means more satisfied customers - and fewer costly callbacks.