ECOLAB 20108 PATHWAYS 4" SOLID DRAIN SANITIZER 40Cases For industrial use ! The new Pathways Solid Drain Sanitizer from Ecolab Inc. is a water-activated, time-released product that provides continuous sanitizing in floor drains. The free-flowing design of the patented Pathways Solid Drain Sanitizer does not obstruct water drainage. It is designed to fight organisms such as staph, E. coli and salmonella bacteria. Aimed at the food-service industry, restaurants, hotels and casinos etc.