Boardwalk® Urinal Screen with Para Deodorizer Block cleans, protects, sanitizes, and deodorizes to keep the urinal clean and smelling fresh. Constructed with a pliable, plastic screen that helps to traps debris. Reduces odor causing bacteria, which protects the drain. Built with a durable, non-splash design. Para deodorizer kills odor-causing bacteria and disinfects. Lasts up to 30 days with a cherry scent.