The EverPro Elite Series from J & J Chemical is a self-mixing, portion control, non-formaldehyde deodorizing tablet. The formula performs with longer-lasting deep blue color, increased fragrance and advanced extreme odor control technology for the most demanding conditions, according to the maker. Drop one individually wrapped tablet into 5 gallons of freshwater and experience instant effervescent deodorizing protection that is non-staining, fast-dissolving and biodegradable. The tablets even dissolve in brine, and are available in a variety of exclusive fragrances with strengths ranging from daily service to weekly odor protection. 800/345-3303; www.jjchem.com.