Tough Grout. Laticrete says its new SpectraLock Pro Premium Grout is GreenGuard-certified (for low-VOC emissions) yet exceeds the toughest commercial performance standards. Features include advanced stainproof protection and a "non-sag" formulation that eases installation. The grout also contains an antimicrobial agent to inhibit mold and mildew growth, the company says. It comes in 40 colors. A package that includes all the ingredients needed to make and clean up 0.8 gallon of grout costs about $100. Laticrete International, 800/243-4788, laticrete.com.