Eradicate rodents with the Ratak+ WeatherBlock-IT rodenticide. This fast-action rodent bait is features the active ingredient brodifacoum, a second-generation anticoagulant. It is formulated as single-feed solution and is particularly effective in reducing large rodent infestations, with death occurring 3 to 5 days after ingestion. Ontario class 4 pesticide. Designed for commercial use.