Fresh Straps from Surco Portable Sanitation Products contain a high amount of odor-counteractant fragrance in a molded polymer vandal-deterrent design. Simply cinch one around the portable restroom vent stack or other structure for continuous odor protection up to 60 days. Typical washdowns will not harm the waterproof straps. They can be used to neutralize sewage odors in portable restrooms, restroom trailers, public restrooms and basements. They are available in three fragrances. 800/556-0111; www.surcopt.com.