Today it seems everyone is moving toward greener solutions for pest control. While this may be a new concept for some, Pf Harris has been doing it for over 90 years. Harris "Famous Roach Tablets" are the oldest EPA registered roach killer in America. Made with boric acid, and our famous special lure, roaches can't resist eating the tablets. Sold for years in super markets and hardware stores, today Harris Products are being discovered by a new generation looking for a greener, more effective way to control pests.