Krystal Urinal Deodorizer Blocks, 4-Ounce Block, Cherry Fragrance, 12 Blocks/Box (U04BX) Go to amazon.com Related posts Top recommendation for urinal cakes cherry FeatureInstantly eliminates odors.Para deodorizer lasts up to 30 days.Paradichlorobenzene block. DescriptionInstantly eliminates odors. Para deodorizer lasts up to 30 days.Paradichlorobenzene block.