Big D DRIP DEODORANT SYSTEM for urinals and toilet bowls attacks odors at their source, neutralizing them before they become airborne. The efficient and economical DRIP DEODORANT DISPENSER (sold separately) releases the biodegradable DRIP FLUID CONCENTRATE which continually eliminates odors. This system is completely automatic and easy to use. DRIP FLUID CONCENTRATE neutralizes all urine and fecal odors, and prevents build-up of odor-causing bacteria in plumbing.