Genuine Joe Non-para Urinal Screen with Block - Apple Fragrance - Lasts for 30 Day - 12 / Box - Blue Non-para urinal screen features block and blue dye indicator. Water-soluble design cleans and deodorizes up to 30 days. Strong sudsing action assures sanitation. Urinal screen offers a natural odor-counteractant with a green apple scent. Biodegradable screen contains no para or acids. Color: Blue