This listing is for Gentrol Point Source (Box) Insect Growth Regulator 20 Devices Description: A roach control device, Gentrol Point Source features the insect growth regulator (IGR) (S)-hydroprene for up to 90 days of control. Target Pests: Roaches, Drain Fruit Flies, Bedbugs, and Stored Product insects. See Product label for all listed pests. For use In: Food Non-Food areas. See Product label for complete list. Shelf life: Gentrol IGR Concentrate will last up to 3 years when stored properly in a cool, dry space away from children. Please refer to photo for more details as they are the best part of the description.