Maril Products PHYSAN 20 is a broad range disinfectant, fungicide, virucide, and algaecide which effectively controls a wide variety of pathogens on hard surfaces and plants. EPA approved, PHYSAN 20 poses no human or environmental risk when it is applied at recommended use levels and according to label instructions. Controls disease-spreading organisms which can be carried from plant to plant by using contaminated pots, flats, seed beds, soil, tools and human hands.