The OEM Genuine Joe Non-para Urinal Screen with Block is designed to provide effective sanitation in urinals. This biodegradable screen contains no para or acids and features a blue dye indicator along with a water-soluble design. It lasts up to 30 days and offers strong sudsing action to ensure cleanliness. Additionally, it includes a natural odor-counteractant with an apple fragrance, making it a practical choice for maintaining a fresh environment. Each box contains 12 units.