The Wave 3D patented urinal screen releases more than twice the active ingredients as look-alike screens, over 30 days to keep the urinal and restroom smelling fresh. The Wave doesn#t' just mask, it releases optimized bacteria that consume odors. The revolutionary design features a post & lattice design extending through the screen and diffuses the urine stream while releasing a pleasant fragrance. The 2- sided anti-splash design removes 99% of urine splash either side up! The Wave 3D easy reminder system lets you know when it's time to replace the screen. Simply remove the tabs upon installation to set your replacement date. Freshens the Urinal and the restroom for 30 days - The patented Wave contains more than twice the actives as 'lookalike' screens. Unique hexagon post & lattice technology eliminates 99% of urine splash, saving custodial cleaning time and patron pant splatters. 2-Sided design ensures correct installation# every time! Reminds you when to change it - Simply pull off the date tabs to remind you when to change it. Saves money because it is stronger longer - Twice as long as lookalikes Eliminates odors - Releases billions of optimized bacteria that consume mal-odors in the urinal. Complies with VOC requirements in all 50 states, North America and Europe. 100% recyclable. Recommended by the #1 Manufacturer of Waterless Urinals - Falcon Waterfree Technologies. Save screens not being used - A screen saver bag is included with every box to keep them fresh while not in use.