Cairox CR Potassium Permanganate tablets from Carus are designed to treat hydrogen sulfide odors in municipal wastewater when the use of feed equipment is not practical. They can be easily deployed in polyester mesh bags in remote site, lift stations and manhole applications. Controlled release (CR) technology allows the tablets to begin reacting with hydrogen sulfide and other odor-producing compounds in seconds. Tablets are passive, prevent sulfide-based corrosion and eliminate the heath risks associated with hydrogen sulfide exposure. 800/435-6856; http://www.caruscorporation.com/tablets